Definitions

clean

[kleen] / klin /

ADJECTIVE

not dirty; uncluttered

Synonyms

STRONGEST

blank bright clear elegant fresh graceful hygienic immaculate neat orderly pure simple spotless squeaky clean tidy unblemished washed

STRONG

cleansed laundered shining sparkling speckless stainless trim vanilla

WEAK

delicate dirtless faultless flawless neat as a button neat as a pin sanitary snowy spick-and-span taintless unpolluted unsmudged unsoiled unspotted unstained unsullied untarnished well-kept

Antonyms

STRONGEST

cluttered dirty disorderly disorganized filthy foul sloppy slovenly soiled tainted unclean unsterile untidy

STRONG

complicated contaminated

WEAK

adulterated besmirched incomplete indefinite muddled polluted stained tarnished

ADJECTIVE

sterile

Synonyms

STRONGEST

aseptic hygienic pure wholesome

STRONG

antiseptic clarified decontaminated disinfected purified sanitary sterilized

WEAK

unadulterated uncontaminated uninfected unpolluted unsullied

Antonyms

STRONGEST

contaminated dirty impure

WEAK

adulterated filthy foul polluted stained tarnished unsterile

ADJECTIVE

chaste, virtuous

Synonyms

STRONGEST

decent good wholesome

STRONG

innocent moral upright

WEAK

blameless crimeless exemplary faultless guiltless honorable inculpable modest respectable sinless undefiled unguilty unsullied

Antonyms

STRONGEST

bad indecent unsuitable

STRONG

corrupt dishonest evil sinful

WEAK

adulterated besmirched defiled dirty filthy foul impure stained tarnished unchaste unvirtuous

ADJECTIVE

precise, sharp

Synonyms

STRONGEST

clear neat plain simple

STRONG

clear-cut correct trim uncluttered

WEAK

definite distinct legible readable

Antonyms

STRONGEST

ambiguous imprecise indefinite muddled obscure obscured unclear unintelligible vague

WEAK

dirty embellished incomplete

ADJECTIVE

complete, thorough

Synonyms

STRONGEST

perfect

STRONG

absolute entire final total whole

WEAK

conclusive decisive unimpaired

Antonyms

STRONG

imperfect imprecise incomplete indefinite limited muddled part partial quick-and-dirty

VERB

to free of dirt and clutter

Synonyms

STRONGEST

bathe brush cleanse clear up disinfect dredge dust mop pick pick up rinse scrape scrub soak spruce up sweep vacuum wash wipe

STRONG

bath blot cauterize clarify deodorize deterge edulcorate erase expunge expurgate flush hackle launder lave neaten polish purge purify rake rasp refine sanitize scald scour shampoo soap sponge sterilize swab whisk winnow

WEAK

absterge clear the decks depurate do up elutriate rout out shake out straighten up tidy up

Antonyms

STRONGEST

dirty worsen

WEAK

foul pollute soil stain

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.

Brennan Gilmore, executive director of Clean Virginia, a political advocacy organization formed to counter Dominion Energy, urged state officials to scrutinize the deal.

From MarketWatch • May 18, 2026

Crucially, CEO Joseph Dominguez seemed to confirm that Constellation is on track to restart a unit at the Crane Clean Energy Center by 2027.

From Barron's • May 11, 2026

Formosa Plastics’ Baton Rouge plant applied for an exemption to a Clean Air Act rule.

From Salon • May 10, 2026

The chemicals sector was the main reason why emissions from China’s industrial sector climbed last year, according to the Centre for Research on Energy and Clean Air.

From The Wall Street Journal • Apr. 30, 2026

Clean up your room because it’s not really clean right now.

From "Harbor Me" by Jacqueline Woodson

Vocabulary lists containing clean

Selection Vocabulary 2, Unit 1

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clean

Example Sentences

Related Words

Vocabulary lists containing clean

Selection Vocabulary 2, Unit 1