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Synonyms

mellow

American  
[mel-oh] / ˈmɛl oʊ /

adjective

  • mellower,
    comparative
  • mellowest
    superlative
  1. soft, sweet, and full-flavored from ripeness, as fruit.

    Antonyms:
    green, raw, immature
  2. well-matured, as wines.

  3. soft and rich, as sound, tones, color, or light.

    Antonyms:
    harsh
  4. made gentle and compassionate by age or maturity; softened.

  5. friable or loamy, as soil.

  6. mildly and pleasantly intoxicated or high.

  7. pleasantly agreeable; free from tension, discord, etc..

    a mellow neighborhood.

  8. affably relaxed; easygoing; genial.

    a mellow teacher who is very popular with her students.


verb (used with or without object)

  • mellows,
    present (3rd person singular)
  • mellowed,
    past participle,  past
  • mellowing
    present participle
  1. to make or become mellow.

    Synonyms:
    improve, mature, develop

noun

  1. Slang. a state, atmosphere, or mood of ease and gentle relaxation.

verb phrase

  1. mellow out

    1. to become detached from worry, strife, stress, etc.; relax.

      After final exams let's go down to the beach and mellow out.

    2. to make more relaxed, agreeable, workable, etc.; soften or smooth.

      Chopin really mellows me out when I'm feeling tense.

mellow British  
/ ˈmɛləʊ /

adjective

  1. (esp of fruits) full-flavoured; sweet; ripe

  2. (esp of wines) well-matured

  3. (esp of colours or sounds) soft or rich

  4. kind-hearted, esp through maturity or old age

  5. genial, as through the effects of alcohol

  6. (of soil) soft and loamy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to make or become mellow; soften; mature

  2. (foll by out) to become calm and relaxed or (esp of a drug) to have a calming or relaxing effect on (someone)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does mellow mean? Mellow means soft, sweet, and full of flavor, usually in reference to ripe fruits. Mellow can also mean well matured, especially in reference to wine. Mellow can also mean soft and rich, usually in reference to sound, color, or musical tone. And mellow can describe a mild and pleasant intoxication or high. You’ll also see mellow used in reference to people. A mellow person is usually easy-going and relaxed. If they’ve mellowed over time, they’ve become more relaxed. In slang, mellow means a mood or atmosphere of relaxation. You might hear something like “Don’t harsh my mellow,” meaning “Don’t spoil my good mood.”Example: Luis became much more mellow after they left their stressful job.

Synonym Usage

See ripe.

Other Word Forms

Derived Forms

Inflected Forms

Adjectives

Participles

Conjugated Forms

Present

Past

Future

Etymology

Origin of mellow

First recorded in 1400–50; late Middle English mel(o)we, alteration (perhaps by dissimilation, in phrase meruw fruit ) of Middle English meruw, Old English meru “soft”

Explanation

When something becomes mellow, it gets softer or more relaxed. People are often said to mellow with age, meaning their aggressiveness, their sarcasm, and their short temper have given way to a more easygoing, genial manner. Wine and other foods mellow just like people, and can be described as "having mellowed" when they reach a full and pleasing flavor, without sharpness. The laid-back quality of jazz pieces like John Coltrane’s “My Favorite Things” is often described as mellow. Sometimes the musicians who play them are mellow too. When people are slightly and pleasantly intoxicated, they often claim to be feeling mellow, having attained a relaxed and agreeable state without even having to grow old.

Keep Reading on Vocabulary.com

Vocabulary lists containing mellow

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The reading, which followed a mellow consumer-price index print the day before, is resetting expectations about what the Federal Reserve will do next month—and in a positive way.

From The Wall Street Journal ● Aug. 13, 2026

A muscular female soprano — Chi’cas Reid — dominates the vocal mix, with Ayers’ mellow baritone in a supporting role.

From Los Angeles Times ● May 19, 2026

There’s its flavor profile, which is sharp and pungent when consumed raw yet mellow, nutty and almost buttery when cooked down.

From Salon ● Apr. 19, 2026

Over time, "you mellow, build networks and take what you can", often in the private sector.

From BBC ● Mar. 18, 2026

She maybe sees why Luke Messenger is so mellow if he listens to this.

From "A Heart in a Body in the World" by Deb Caletti

The inner fire and determination remain, but he is mellower, more mature these days.

From BBC ● Mar. 23, 2026

They were considerably mellower than the originals—we got a taste of what those might have been like from a brief preview set performed by the blues guitarist and singer Memphis Gold.

From The Wall Street Journal ● Dec. 9, 2025

Evolving from a mellower medley attempted after the production’s 2017 debut, the Megasix picked up its defining feature from producer Kenny Wax.

From Los Angeles Times ● May 21, 2023

A cousin of the sitar, but with a slightly mellower tone, the sarod is fretless, so pitch sliding, almost like a steel guitar does, is a vital component of the technique.

From Seattle Times ● Sep. 8, 2022

When he described visiting the Mani, his voice became even mellower than usual, and his eyes glistened.

From "Middlesex: A Novel" by Jeffrey Eugenides

Even the mellowest teens are raging against the pandemic quarantine.

From Washington Post ● Apr. 23, 2020

Michael Kiwanuka – Solid Ground The mellowest track on the singer-songwriter’s superb third album strips his sound back to electric piano and strings.

From The Guardian ● Mar. 17, 2020

Koenig, who carries himself like the mellowest dude at a black-tie event, doesn’t mind if a listener takes something real in his lyrics for something imagined.

From Los Angeles Times ● Apr. 25, 2019

“Music After the Fall,” like the blog, addresses a vast range of music, from the gnarliest experimentalism to the mellowest minimalism, and Rutherford-Johnson applies a critical intelligence that is at once rigorous and generous.

From The New Yorker ● Aug. 20, 2018

I say, but the master-at-arms seems to be ignoring me now, so I direct the question to the skull with a rose in its mouth, figuring it might be the mellowest one.

From "Challenger Deep" by Neal Shusterman

And Joq is genuinely fascinated by the way hickory smoke mellows and rounds out a pungent blue cheese.

From The Wall Street Journal ● Dec. 4, 2025

"Can y'all come straighten it up over here? It's not looking luxurious," Sean "Diddy" Combs says in a voice note to his personal assistants as R&B music mellows in the background.

From BBC ● Jul. 2, 2025

A generous amount of ginger, cut into matchsticks, mellows and softens as it cooks, and adds a brightness that perks up the deeper flavors.

From Washington Times ● Sep. 14, 2023

The spinach mellows everything out, and adding heavy cream to the eggs helps them to bake up nice and fluffy, kind of like a quiche, instead of dry and gritty.

From Seattle Times ● Jul. 18, 2023

It is nature that mellows and softens the distance, and brings out sharply the lights and shadows of the foreground, and the artist must follow her if he would succeed. 

From Interludes being Two Essays, a Story, and Some Verses by Horace Smith

His views had mellowed by the time he took charge of that “historic disaster” with its awesome control over money and banks.

From The Wall Street Journal ● Jun. 22, 2026

Also stripping out energy prices, inflation mellowed to 2.6 percent from 2.9 percent, while headline unadjusted inflation was 1.5 percent, down from 2.1 percent.

From Barron's ● Feb. 20, 2026

It’s intense with a touch of bitterness that’s not necessarily unappealing, but adds a layer of acidity that can be mellowed out with your favorite creamer, milk or sugar.

From Salon ● Nov. 6, 2025

"I think I've mellowed a fair bit. We do make mistakes and we're also allowed to develop. I coach far differently than maybe I did 20 years ago," Mitchell told Radio 5 Live in 2018.

From BBC ● Sep. 23, 2025

Father Gomez stepped through the window as the evening light lengthened and mellowed.

From "The Amber Spyglass" by Philip Pullman

“Dancing on the Ceiling” does the opposite, starting with very verbose Art Tatum-style arpeggios in the verse but then mellowing out in the chorus, and quoting “All This and Heaven Too.”

From The Wall Street Journal ● Apr. 29, 2026

Their mellowing relationship is meant to mirror the growth of civil rights in the South.

From Los Angeles Times ● Jan. 25, 2023

In Bourbon County, the local water is naturally filtered through mellowing limestone, which removes every trace of iron, the nemesis of good whiskey.

From Seattle Times ● Jan. 7, 2023

Though Harley and Ivy’s honeymoon phase is already beginning to wane as Harley Quinn’s third season opens, the mellowing of their relationship’s something the series never really frames as a sign of danger.

From The Verge ● Jul. 27, 2022

It was something about her lately, a mellowing, a softening from which this note had come.

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

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