62 Adjectives Starting with M Commonly Used in Formal Letters and Everyday Conversation

An adjective is a word that customizes and intensifies a noun or a pronoun. It gives additional information about what the noun or the pronoun refers to. It usually comes right before the noun or the pronoun that it modifies. We can use more than one adjective to describe a noun or a pronoun, and when a noun comes before another noun, it becomes its adjective.


  • The colorful balloon floated over the treetop.
  • The big dog chased the car.
  • A yellow butterfly is sitting on the red rose.
  • The tall giraffe is eating green leaves.
  • A small rat is beside the brown cabinet.
  • The beautiful princess is wearing a purple gown.

The alphabet M is the most prominent letter of English language. There are more than 800 adjectives that start with M. So, by using some descriptive words starting with M, you may describe your noun properly.

Here is a list of both positive and negative adjectives starting with M which you can use for perfect description of the nouns around you.

Positive Adjectives Starting with M to Describe a Person

1. Magnanimous

Definition: Big-hearted and generous, moral

Synonyms: open-handed, charitable, beneficent

Example: She was very magnanimous toward the noisy neighbors, even after they kept her awake all night.

2. Modish

Definition: Fashionable

Synonyms: stylish, smart, chic

Example: I like to wear modish clothing when I go out for dinner.

3. Mature

Definition: someone or something that is full grown

Synonyms: developed, full-grown, ripe

Example: Humans take longer to mature than most other animals.

4. Mellow

Definition: someone or something that is calm

Synonyms: genial, friendly, pleasant

Example: He’s a very mellow guy.

5. Merciful

Definition: someone who is caring, compassionate, and gentle

Synonyms: charitable, clement, forgiving

Example: “God is merciful, doctors are never needed”, she said.

6. Merry

Definition: festive, full of laughter, or fun

Synonyms: happy, cheerful, vivacious

Example: He laughed at that, and his laugh was merry and frank.

7. Mindful

Definition: attentive, consciously aware of something

Synonyms: alert, careful, cautious

Example: Mindful of the fact that customer service is still a high priority.

8. Modern

Definition: a style of art, design, or fashion that is very different from past styles

Synonyms: avant-garde, contemporary, progressive

Example: As a modern parent, I know that it’s not how much you give children those counts, it’s the love and attention you shower on them.

9. Munificent

Definition: a very generous person

Synonyms: altruistic, benevolent, philanthropic

Example: Akbar was a munificent patron of literature.

10. Malleable

Definition: Capable of being changed or molded, adaptable

Synonyms: pliable, ductile, workable

Example: The malleable boy was easily swayed by each new trend that came along.

Positive Adjectives Starting with M to Describe an Event

1. Magical

Definition: having brought about by, or relating to supernatural powers

Synonyms: talismanic, wizardly

Example: Did the room actually have a magical strength, or was it simply a childish fantasy?

2. Magnificent

Definition: something that is exceptional or amazing in appearance

Synonyms: beautiful, brilliant, dazzling

Example: The flowers were colorful and the scenery was magnificent.

3. Marvelous

Definition: the characteristic of being surprising, amazing, or very good

Synonyms: amazing, astonishing, wondrous

Example: He’s done a marvelous job of the decorating.

4. Major

Definition: something that is great, very consequential, serious, or important

Synonyms: chief, considerable, foremost

Example: Destruction of habitat is the major reason why young male cougars end up coming into the city every year.

5. Maximum

Definition: the largest or highest number of something that is possible

Synonyms: apex, supreme, highest

Example: For maximum benefit, take the tablets before meals.

6. Meaningful

Definition: having meaning 

Synonyms: eloquent, important, worthwhile

Example: Strive to make every day joyful and meaningful.

7. Mellifluous

Definition: something musical, melodious, or pleasant to hear

Synonyms: musical, pleasant, smooth

Example: It’s her mellifluous tones and rich vibrato that she employs to color her personalized repertoire which provokes responses like these.

8. Melodic

Definition: having a sequence of pleasing sounds

Synonyms: harmonious, musical, euphonic

Example: Somewhere in the distance, a Meadowlark called, its melodic song adding sweetness to the smell of wild roses.

10. Miraculous

Definition: something unexpected and wonderful

Synonyms: amazing, divine, wondrous

Example: She made a miraculous recovery from her injuries.

11. Moral

Definition: something that relates to the rules of right and wrong

Synonyms: ethical, good, puritanical

Example: He has high moral principles.

12. Myriad

Definition: an infinitely large number

Synonyms: infinite, countless, innumerable

Example: I’ll never be able to count the myriad blessings I have received.

13. Melodious

Definition: something that is pleasant sounding

Synonyms: harmonious, lyrical, pleasing

Example: His energy, his sense of humor and his melodious voice made a deep impression.

Positive Adjectives Starting with M to Describe a Place

1. Majestic

Definition: something very grand or stately

Synonyms: dignified, elegant, regal

Example: London is a lively, beautiful, and majestic city.

2. Main

Definition: the most important or primary person or thing 

Synonyms: central, chief, principal

Example: The whole school assembled in the main hall.

3. Mammoth

Definition: extremely huge in size or importance

Synonyms: colossal, enormous, gargantuan

Example: Interesting finds from the Stone Age, as well as remains of the mammoth, have been made.

4. Many

Definition: an indefinite, large number of people or things

Synonyms: legions, multiple, numerous

Example: He visited many lands and saw wonderful things.

5. Marketable

Definition: easily sold; in demand

Synonyms: bankable, sellable, wanted

Example: But in this keenly competitive world your real estate property may become more marketable the more information about it you supply to your target audience.

6. Memorable

Definition: something that is special or interesting enough to be easy to recall

Synonyms: celebrated, eventful, unforgettable

Example: The city is memorable for its fantastic beaches.

7. Moderate

Definition: something that is average, mild, or within reasonable limits

Synonyms: temperate, measured, equable

Example: The charm of the place is the greenery with the moderate climate making it a tourists’ heaven.

8. Monumental

Definition: something that has lasting value

Synonyms: lofty, impressive, majestic

Example: The monumental records of Egypt are the source of the earliest information on farming.

Adjectives Starting with M to Describe Emotions, Personality, and Feelings

1. Meticulous

Definition: showing great attention to detail; very careful and precise.

Synonyms: careful, conscientious

Example: He was meticulous about hygiene.

2. Mirthful

Definition: full of mirth; merry or amusing.

Synonyms: merry, high spirited,

Example: The mirthful ending of the movie delighted all the audience.

3. Miraculous

Definition: remarkable and bringing very welcome consequences.

Synonyms: amazing, astounding

Example: “I felt amazed and grateful for our miraculous escape”.

4. Moody

Definition: (of a person) given to unpredictable changes of mood, especially sudden bouts of gloominess or sullenness.

Synonyms: unpredictable, emotional, volatile

Example: I’m fed up with moody women today.

5. Motivated

Definition: very enthusiastic or determined because you really want to do something

Synonyms: inspire, stimulate, prompt

Example: Our staff members are hard-working and highly motivated.

6. Momentous

Definition: of great importance or significance, especially in having a bearing on future events

Synonyms: important, significant, historic

Example: His colleagues all recognized that this was a momentous occasion.

Negative Adjectives Starting with M to Describe a Person

1. Machiavellian

Definition: characterized by craftiness and duplicity

Synonyms: devious, cunning, sly

Example: Cheating to win at Scrabble is Machiavellian behavior. Let’s play fair!

2. Melancholy

Definition: sad or gloomy

Synonyms: sorrow, sadness, desolation

Example: The melancholy girl liked to watch sad movies and cry.

3. Meretricious

Definition: using false, flashy charm

Synonyms: flashy, gaudy, pretentious

Example: Some meretricious people are good at making friends, but don’t keep them for long.

5. Militant

Definition: ready to fight, especially for a cause, aggressive

Synonyms: violent, belligerent, assertive

Example: Militant people can be seen as very hostile.

6. Misanthropic

Definition: disliking people

Synonyms: antisocial, unfriendly, uncongenial

Example: The misanthropic man yelled at the neighbors for being too loud, when they were barely whispering.

7. Monarchical

Definition: like a monarch (king or queen)

Synonyms: kingly, regal, monarchal

Example: The spoilt, monarchical girl always wanted her own way.

8. Mulish

Definition: resembling or likened to a mule in being stubborn

Synonyms: obstinate, resolute, uncompromising

Example: Mulish people don’t change their minds easily.

9. Myopic

Definition: lacking understanding, short-sighted

Synonyms: purblind, shortsighted, nearsighted

Example: If he wasn’t so myopic, he would understand how the changes help the business.

10. Mad

Definition: mentally ill

Synonyms: insane, deranged, demented

Example: Fitzgerald looked mad enough to take a swing.

Negative Adjectives Starting with M to Describe an Event

1. Maladapted

Definition: not properly adapted to, poorly suited

Synonyms: unfit, abnormal, deficient

Example: Maladapted species tend to die out as part of evolution.

2. Missing

Definition: (of a thing) not able to be found because it is not in its expected place.

Synonyms: lost, mislaid, misplace

Example: Was it about a missing child?

3.  Misunderstood

Definition: incorrectly interpreted or understood

Synonyms: misapprehend, misinterpret

Example: Mondegreens are misunderstood lyrics, and when we asked our readers for their favorites, not surprisingly the most familiar ones got multiple votes.

4. Moldy

Definition: covered with a fungal growth which causes decay, due to age or damp conditions

Synonyms: mildewed, mildewy

Example: I was afraid it would get moldy in that tin body of yours.

5. Mysterious

Definition: difficult or impossible to understand, explain, or identify

Synonyms: puzzling, strange, peculiar

Example: There is a mysterious visitor in the office.

Negative Adjectives Starting with M to Describe a Place

1. Messy

Definition: untidy, dirty

Synonyms: filthy, grubby

Example: The messy studio from last week had been transformed into a professional art gallery.

2. Misshapen

Definition: not having the normal or natural shape or form

Synonyms: deformed, malformed

Example: They were used to store trunks, suitcases, large misshapen cardboard boxes and broken furniture.

3. Monstrous

Definition: having the ugly or frightening appearance of a monster.

Synonyms: grotesque, hideous

Example: Twenty times this monstrous frozen barrier slowly built up, inch by inch, and oozed south.

Negative Adjectives Starting with M to Describe Emotions, Personality, and Feelings

1. Macabre

Definition: ghastly, gruesome or horrifying

Synonyms: gory, grim, morbid

Example: After the increase of crime in her neighborhood, Annie began to be questioned about some of her macabre hobbies.

2. Malefic

Definition: evil, malicious

Synonyms: antagonistic, baleful, deleterious

Example: Lying to your parents is malefic behavior and you should not do it.

3. Malicious

Definition: characterized by malice; intending or intended to do harm.

Synonyms: spiteful, malevolent, hostile

Example: Fascists can counter the malicious propaganda to destroy friendly relations with Germany by using this fact.

4. Menacing

Definition: suggesting the presence of danger; threatening

Synonyms: imperil, jeopardize, threaten

Example: He cultivated good relations with England, in view doubtless of Russia’s menacing attitude.

5. Moany

Definition: Susceptible to moaning; tending to complain

Synonyms: groaning, wailing, whimper

Example: Before this all gets too moany, I would like to say that I love what I do.

6. Miserable

Definition: (of a person) wretchedly unhappy or uncomfortable

Synonyms: sad, unhappy, sorrowful

Example: I love you and it’s been miserable without you.

7. Materialistic

Definition: excessively concerned with material possessions; money-oriented

Synonyms: worldly, consumerist, money-oriented

Example: People have become so materialistic that they have no time to stand and stare.


With its multiple types, forms and rules of use, adjective can be a slippery element of language to master. Get a firm grip on it, however, you’ll be rewarded with the power to elevate your work to a more engaging, interesting and expressive level. When used well, this essential part of the English language can become your most potent writing ally. They’ll make your writing more specific and lucid, enabling you to convey your ideas in a clear and appealing manner.

So, you can use the descriptive words starting with M above, where it is appropriate to use.

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