Synonyms of plain

plain 1 of 3

adjective

ˈplān 

1

as in simple

free from all additions or embellishment

I like my hamburgers plain, with no ketchup or relish

just give us the plain facts and none of your snide comments

Synonyms & Similar Words

• simple
• unadorned
• naked
• bare
• undecorated
• unvarnished
• bald
• clean
• stripped
• unembellished
• unornamented
• plain-vanilla
• quiet
• honest
• restrained
• homely
• unsophisticated
• spartan
• modest
• elemental
• bleak
• earthy
• subdued
• natural
• stark
• unpretentious
• forthright
• divested
• austere
• muted
• inconspicuous
• conservative
• severe
• denuded
• minimalist
• unobtrusive
• understated
• toned (down)
• antiseptic
• sober
• au naturel

Antonyms & Near Antonyms

• fancy
• decorated
• loud
• gaudy
• showy
• ornamented
• garish
• flashy
• embellished
• adorned
• tawdry
• flamboyant
• ostentatious
• glitzy
• exaggerated
• swank
• florid
• lurid
• splashy
• elaborate
• ornate
• overwrought
• glittery
• extravagant
• baroque
• rococo
• dressed
• embroidered
• trimmed
• bedizened
• overdecorated
• arrayed
• bedecked
• decked-out
• overdone
• garnished
• appareled

2

as in pure

free from added matter

I'd prefer my pasta plain, not flavored with tomato or spinach or anything else

Synonyms & Similar Words

• pure
• fresh
• unadulterated
• straight
• neat
• undiluted
• unmixed
• refined
• absolute
• tried
• unalloyed
• fine
• purified
• clean
• filtered
• concentrated
• rendered
• untainted
• uncontaminated
• unpolluted
• undefiled
• uncorrupted
• strong
• clarified
• full-bodied
• uncombined
• taintless

Antonyms & Near Antonyms

• mixed
• impure
• contaminated
• adulterated
• diluted
• polluted
• spoiled
• alloyed
• soiled
• debased
• tainted
• corrupted
• compounded
• incorporated
• blended
• combined
• unclarified
• mingled
• intermixed
• joined
• intermingled
• defiled
• merged
• sullied
• amalgamated
• commingled
• fused
• linked
• fouled
• befouled
• besmirched
• conjoined
• united
• coalesced
• watered-down
• doctored
• cheapened

3

as in outspoken

free in expressing one's true feelings and opinions

their piano teacher is honest and plain, if not always tactful

Synonyms & Similar Words

• outspoken
• honest
• straightforward
• candid
• frank
• forthcoming
• direct
• straight
• vocal
• open
• forthright
• blunt
• unguarded
• plainspoken
• up-front
• out-front
• unreserved
• real
• openhearted
• unaffected
• earnest
• unpretending
• naive
• free-spoken
• artless
• guileless
• sincere
• ingenuous
• unpretentious
• foursquare
• innocent
• freehearted
• rude
• outgoing
• natural
• uninhibited
• gruff
• crusty
• bluff
• curt
• unrestrained
• brusque
• thoughtless
• abrupt
• vociferous
• undesigning
• unsubtle
• tactless
• sharp
• inconsiderate
• impertinent
• impolite
• unmannerly
• undiplomatic
• ungracious
• uncivil

Antonyms & Near Antonyms

• restrained
• quiet
• reserved
• laconic
• ambiguous
• inhibited
• reticent
• uncandid
• dissembling
• uncommunicative
• taciturn
• unforthcoming
• evasive
• circuitous
• equivocal
• diplomatic
• civil
• tactful
• polite
• politic
• courteous
• tight-lipped
• close-mouthed
• considerate

4

as in straightforward

going straight to the point clearly and firmly

a plain report on the current situation

Synonyms & Similar Words

• straightforward
• straight
• direct
• blunt
• honest
• candid
• forthright
• frank
• true
• earnest
• artless
• sincere
• foursquare
• outspoken
• unguarded
• sharp
• open
• plainspoken
• curt
• bluff
• unreserved
• gruff
• aboveboard
• uninhibited
• brusque
• abrupt
• openhearted
• tactless
• rude
• unrestrained
• truthful
• free-spoken
• inconsiderate
• impolite
• undiplomatic
• point-blank
• veracious

Antonyms & Near Antonyms

• indirect
• circuitous
• roundabout
• wordy
• verbose
• prolix
• civil
• restrained
• polite
• reserved
• lying
• inhibited
• tactful
• courteous
• erroneous
• deceitful
• circumlocutory
• mendacious
• false
• long-winded
• ambiguous
• untruthful
• misleading
• fallacious
• evasive
• equivocal
• hypocritical
• double-dealing
• two-faced

5

as in obvious

not subject to misinterpretation or more than one interpretation

let me make my meaning plain

Synonyms & Similar Words

• obvious
• evident
• apparent
• unmistakable
• clear
• straightforward
• distinct
• simple
• broad
• transparent
• visible
• lucid
• unambiguous
• decided
• manifest
• clear-cut
• perspicuous
• ringing
• unequivocal
• luminous
• bald
• pellucid
• crystal clear
• barefaced
• patent
• intelligible
• palpable
• bright-line
• comprehensible
• open-and-shut
• explicit
• understandable
• bald-faced
• noticeable
• tangible
• unambivalent
• nonambiguous
• luculent
• uncomplicated
• recognizable
• knowable
• digestible
• overt
• tidy
• clean-cut
• sensible
• cognizable
• observable
• appreciable
• undisguised
• self-explanatory
• self-evident
• comprehendible
• discernible
• black-and-white
• perceptible
• fathomable
• graspable
• readable
• legible
• trenchant
• cognoscible
• clean
• decipherable
• well-defined
• fair

Antonyms & Near Antonyms

• dark
• obscure
• ambiguous
• mysterious
• cryptic
• indistinct
• unclear
• enigmatic
• equivocal
• unintelligible
• clouded
• incomprehensible
• indecipherable
• unfathomable
• gray
• unknowable
• vague
• subtle
• imperceptible
• unapparent
• obfuscated
• unclarified
• nonobvious
• impalpable
• insensible
• sketchy
• indeterminate
• inappreciable
• cloudy
• misty
• indefinite
• nebulous
• slippery
• hazy
• murky
• imprecise
• noncommittal
• illegible
• gauzy
• unreadable
• indiscernible
• undecipherable

plain

2 of 3

adverb

as in openly

in an honest and direct manner

told her plain that he loved her

Synonyms & Similar Words

• straightforward
• openly
• plainly
• straight
• simply
• sincerely
• honestly
• straightforwardly
• abruptly
• directly
• frankly
• forthrightly
• sharply
• baldly
• foursquare
• bluntly
• candidly
• unreservedly
• bluffly
• rudely
• artlessly
• earnestly
• brusquely
• curtly
• truthfully
• unguardedly
• openheartedly
• gruffly
• inconsiderately
• tactlessly
• point-blank
• impolitely
• veraciously

Antonyms & Near Antonyms

• wordily
• politely
• verbosely
• tactfully
• diplomatically
• courteously
• civilly
• deceitfully
• falsely
• erroneously
• mendaciously
• untruthfully
• long-windedly
• indirectly
• hypocritically
• ambiguously
• insincerely
• fallaciously
• evasively
• equivocally
• circuitously

plain

3 of 3

noun

1

as in prairie

a broad area of level or rolling treeless country

the first settlers in that area lived on the vast plains in lonely log cabins

Synonyms & Similar Words

• prairie
• steppe
• grassland
• savanna
• pampa
• meadow
• veld
• moor
• tundra
• champaign
• heath
• campo
• lea
• field
• llano
• down(s)
• flat
• lowland
• plateau
• table
• floodplain
• bottomland
• upland
• tableland
• bottom

2

as in expanse

a wide space or area

the vast plains of snow-covered earth that seemed to stretch endlessly

Synonyms & Similar Words

• expanse
• expansion
• stretch
• sheet
• length
• distance
• extent
• reach
• breadth
• field
• waste
• spread
• territory
• scope
• domain
• depth
• spectrum
• sphere
• scale
• range
• extension
• compass
• void
• sweep
• gamut
• span
• amplitude
• latitude
• magnitude
• emptiness
• immensity

Synonym Chooser

How is the word plain distinct from other similar adjectives?

Some common synonyms of plain are candid, frank, and open. While all these words mean "showing willingness to tell what one feels or thinks," plain suggests outspokenness and freedom from affectation or subtlety in expression.

plain talk

When could candid be used to replace plain?

Although the words candid and plain have much in common, candid suggests expression marked by sincerity and honesty especially in offering unwelcome criticism or opinion.

a candid appraisal

When might frank be a better fit than plain?

In some situations, the words frank and plain are roughly equivalent. However, frank stresses lack of shyness or secretiveness or of evasiveness from considerations of tact or expedience.

frank discussions

How does the word open relate to other synonyms for plain?

Open implies frankness but suggests more indiscretion than frank and less earnestness than candid.

open in saying what they think

Example Sentences

Recent Examples of plain

Adjective

Hidden in plain sight around the resort are 300 little wooden menehune statues, peeking out from corners and under bridges. —Kathleen Wong, USA Today, 15 June 2026

The new restaurant in Rocky Hill is fine dining, white table cloths and plain, elegant surroundings including five tables in front for outdoor dining. —Pamela McLoughlin, Hartford Courant, 15 June 2026

Adverb

The decision after review to award a penalty against Palace defender Jaydee Canvot for accidental handball on the goal line was plain wrong in law. —Graham Scott, New York Times, 24 May 2026

Easy™ This is a business decision, and some business decisions are just plain tough. —Expert Panel®, Forbes.com, 20 May 2026

Noun

With the greatest risk from Denver International Airport and Aurora spreading out over the Colorado plains to Burlington. —Dave Aguilera, CBS News, 8 June 2026

Ranging from seemingly endless desert plains to rugged mountain ranges, the region is filled with scenic drives, plenty of opportunities for outdoor adventure, and best of all, wide-open spaces that let the imagination roam free. —Gabi De La Rosa, Travel + Leisure, 7 June 2026