[ mel-oh ]
/ ˈmɛl oʊ /
adjective, mel·low·er, mel·low·est.
soft, sweet, and full-flavored from ripeness, as fruit.
well-matured, as wines.
soft and rich, as sound, tones, color, or light.
made gentle and compassionate by age or maturity; softened.
friable or loamy, as soil.
mildly and pleasantly intoxicated or high.
pleasantly agreeable; free from tension, discord, etc.: a mellow neighborhood.
affably relaxed; easygoing; genial: a mellow teacher who is very popular with her students.
verb (used with or without object)
to make or become mellow.
Slang. a state, atmosphere, or mood of ease and gentle relaxation.
mellow out, Slang.
- to become detached from worry, strife, stress, etc.; relax: After final exams let's go down to the beach and mellow out.
- to make more relaxed, agreeable, workable, etc.; soften or smooth: Chopin really mellows me out when I'm feeling tense.
Feeling Left Out: Idioms That Hurt LeftiesRead more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of mellow
1400–50; late Middle English mel(o)we, alteration (perhaps by dissimilation, in phrase meruw fruit) of Middle English meruw, Old English meru soft
SYNONYMS FOR mellow
1 See ripe.
9 develop, mature, improve.
mel·low·ly, adverbmel·low·ness, nouno·ver·mel·low, adjectiveo·ver·mel·low·ly, adverb
o·ver·mel·low·ness, nounun·mel·low, adjectiveun·mel·lowed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for mellow out
/ (ˈmɛləʊ) /
(esp of fruits) full-flavoured; sweet; ripe
(esp of wines) well-matured
(esp of colours or sounds) soft or rich
kind-hearted, esp through maturity or old age
genial, as through the effects of alcohol
(of soil) soft and loamy
to make or become mellow; soften; mature
(foll by out) to become calm and relaxed or (esp of a drug) to have a calming or relaxing effect on (someone)
Derived Formsmellowly, adverbmellowness, noun
Word Origin for mellow
C15: perhaps from Old English meru soft (as through ripeness)
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
Idioms and Phrases with mellow out
Become genial or pleasant, calm down, relax, as in The teacher mellowed out when they explained what had happened. This expression uses mellow in the sense of “ripening,” with the connotation of softness and sweetness. [Slang; late 1900s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.