Synonyms of mellow

mellow 1 of 2

adjective

ˈme-(ˌ)lō 

1

as in melodic

having a pleasantly flowing quality suggestive of music

the mellow tones of an old violin

Synonyms & Similar Words

• melodic
• lyrical
• lyric
• musical
• melodious
• mellifluous
• sweet
• euphonious
• mellifluent
• dulcet
• golden

Antonyms & Near Antonyms

• harsh
• strident
• disconnected
• dissonant
• discordant
• jarring
• inharmonious
• unlyrical
• unmusical
• staccato
• grating
• unmelodious

2

as in gentle

not harsh or stern especially in nature or effect

a teacher with a mellow approach to classroom discipline

mellow soaps

Synonyms & Similar Words

• gentle
• soothing
• soft
• mild
• light
• benign
• quiet
• bland
• delicate
• smooth
• balmy
• calm
• serene
• peaceful
• tender
• tranquil
• placid
• nonabrasive
• compassionate
• easy
• merciful
• pacific
• lenient
• softening
• sleek
• slick
• clement
• emollient
• buffering
• cushioning

Antonyms & Near Antonyms

• intense
• harsh
• hard
• rough
• powerful
• caustic
• coarse
• abrasive
• stern
• severe
• violent
• scathing
• fierce
• exquisite
• strong
• forceful
• savage
• forcible
• ungentle
• rugged
• irritating
• gruff
• stiff
• grim
• rude
• roughened
• oppressive
• pitiless
• tyrannical
• roughening
• abrading
• heavy-handed

3

as in pleasant

having an easygoing and pleasing manner especially in social situations

mellow and unflappable, the office manager greatly contributes to the work environment

Synonyms & Similar Words

• pleasant
• gracious
• nice
• sweet
• amiable
• friendly
• agreeable
• affable
• cheerful
• good-natured
• gentle
• delightful
• genial
• attractive
• good-tempered
• clever
• kind
• polite
• well-disposed
• thoughtful
• benign
• enjoyable
• civil
• cordial
• amicable
• cheery
• sunny
• neighborly
• courteous
• sociable
• considerate
• glad
• likable
• companionable
• conversable
• amenable
• obliging
• accommodating

Antonyms & Near Antonyms

• unpleasant
• disagreeable
• surly
• ungracious
• unamiable
• unkind
• irritable
• rude
• unsociable
• inconsiderate
• boorish
• grumpy
• grouchy
• discourteous
• petulant
• unmannerly
• cranky
• uncivil
• bilious
• snappish
• irascible
• cantankerous
• touchy
• fussy
• peevish
• ungenial
• choleric
• testy
• impolite
• crabby
• dyspeptic
• contrary
• churlish
• ornery
• ill-tempered
• bearish
• contentious
• argumentative
• querulous
• ill-natured
• sour
• unattractive
• ill-mannered
• unappealing
• ill-humored
• vinegary
• quick-tempered

4

as in unaffected

having a relaxed, casual manner

a mellow crowd sat on the grass and enjoyed the music coming from the band shell

Synonyms & Similar Words

• unaffected
• casual
• nonchalant
• easygoing
• informal
• breezy
• flexible
• familiar
• affable
• low-pressure
• laid-back
• happy-go-lucky
• warm
• carefree
• devil-may-care
• soft
• untroubled
• lackadaisical
• unperturbed
• lenient
• unconcerned
• homey
• permissive
• approachable
• pliant
• accessible
• unworried
• pliable
• lax
• unfussy
• companionable
• imperturbable
• unflappable
• cordial
• genial
• amicable
• neighborly
• unshakable
• hearty
• dégagé
• warmhearted
• nerveless
• comradely
• hail-fellow-well-met

Antonyms & Near Antonyms

• uptight
• formal
• strict
• rigid
• anxious
• decorous
• high-strung
• ceremonious
• distressed
• nervous
• bothered
• worried
• tense
• jumpy
• jittery
• skittish

mellow

2 of 2

verb

as in to mature

Related Words

• mature
• soften
• ripen
• grow
• grow up
• flower
• age
• blossom
• progress
• bloom
• flourish
• develop
• gray
• open
• evolve
• get along
• unfold
• get on
• burgeon
• advance

Dissimilar Words

• decay
• dry
• decline
• deteriorate
• degenerate
• fade
• sink
• worsen
• waste (away)
• weaken
• wilt
• wane
• sag
• wither
• revert
• shrivel
• flag
• return
• droop
• regress
• lapse
• retrogress
• backslide

Example Sentences

Recent Examples of mellow

Adjective

But the mellow vibes are ruined when a goofy case of mistaken identity results in Frankie coming home with a briefcase containing several vials of a glowing orange goo. — Angie Han, HollywoodReporter, 12 Aug. 2026

For the more mellow, there are chairlift rides up and down for scenic views, hiking, a mini mining experience and even a mini golf course. — Moira McCarthy, Boston Herald, 2 Aug. 2026

Verb

Softening the red onion in hot water, vinegar, sugar, and salt helps to mellow its raw flavor, while keeping its crunchy texture. — Erin Merhar, Southern Living, 13 June 2026

Fatherhood gave him a different perspective, and the lack of regular wins in later years seemed to mellow him. — Jordan Bianchi, New York Times, 21 May 2026

Phrases Containing mellow

• mellow (out)