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Definitions

anti

[an-tahy, an-tee] / ˈæn taɪ, ˈæn ti /
ADJECTIVE
contradictory
Synonyms
STRONGEST
antithetical conflicting contrary incompatible inconsistent paradoxical
STRONG
antipodal con converse counter opposite reverse
WEAK
adverse against agin antipodean antithetic counteractive diametric discrepant incongruous irreconcilable negating nullifying opposing ornery polar repugnant
Antonyms
STRONGEST
consonant harmonious
STRONG
equal same similar
WEAK
agreeing confirming consistent reconcilable reconciled vouching
ADJECTIVE
contrary
Synonyms
STRONGEST
adverse antithetical conflicting contradictory discordant hostile inconsistent inimical negative opposed paradoxical wrongheaded
STRONG
antipodal converse counter dissident nonconformist recusant refractory reverse
WEAK
antipathetic antipodean balky clashing contrariant contumacious diametric dissentient froward headstrong insubordinate intractable nonconforming obstinate ornery perverse rebellious recalcitrant restive stubborn unruly wayward
Antonyms
STRONGEST
agreeable agreeing consistent friendly harmonious kind
STRONG
conforming equal same similar
WEAK
accommodating alike concordant correspondent homogeneous like obliging
ADJECTIVE
counter
Synonyms
STRONGEST
antithetical
STRONG
antipodal conflicting contradictory contrary contrasting converse hindering impeding obverse opposed reverse
WEAK
adverse against antagonistic antipodean diametric obstructive polar
Antonyms
STRONG
agreeing harmonious similar
WEAK
concurring corresponding corroborating equal same
ADJECTIVE
hostile
Synonyms
STRONGEST
adverse belligerent bitter contentious contrary hateful inhospitable inimical nasty opposed unfavorable unfriendly unsympathetic
STRONG
alien catty chill cold militant opposite sour
WEAK
allergic argumentative bellicose competitive disapproving dour ill-disposed malevolent malicious malignant oppugnant ornery pugnacious rancorous scrappy spiteful surly unkind unpropitious unsociable unwelcoming viperous virulent vitriolic warlike
Antonyms
STRONGEST
agreeable aiding favorable friendly good helpful helping hospitable kind nice pleasant wonderful
STRONG
hot sympathetic warm
WEAK
gentle welcoming
ADJECTIVE
negative
Synonyms
STRONGEST
adverse gloomy pessimistic unfavorable weak
STRONG
abrogating annulling con contrary contravening denying disallowing disavowing dissenting gainsaying impugning invalidating jaundiced naysaying neutralizing nullifying opposing recusant refusing rejecting removed resisting
WEAK
against antagonistic balky colorless counteractive cynical detrimental dissentient nugatory privative repugnant resistive unaffirmative unenthusiastic uninterested unwilling
Antonyms
STRONGEST
favorable
WEAK
good positive
ADJECTIVE
opposed
Synonyms
STRONGEST
antithetical averse disputed hostile inimical opposing
STRONG
battling clashing combating conflicting confronting controverting counter crossing defending denying disagreeing disputing exposing facing gainsaying objecting protesting repelling rival warring
WEAK
against allergic antipathetic antonymous at cross-purposes at odds contrary defensive dissentient enemy in opposition incompatible irreconcilable obstructive opposite restrictive up against
Antonyms
STRONGEST
friendly kind
WEAK
in favor of
ADJECTIVE
opposed/opposing
Synonyms
WEAK
against the grain allergic antipathetic antithetical antonymous at cross-purposes at odds averse battling clashing combating conflicting confronting contrary controverting counter crossing defending defensive denying disagreeing disputed disputing dissentient enemy exposing facing gainsaying hostile in opposition incompatible inimical irreconcilable objecting obstructive opposite protesting repelling restrictive rival up against warring
Antonyms
WEAK
aiding assisting compatible helping similar
ADJECTIVE
opposing
Synonyms
STRONGEST
antagonistic conflicting
STRONG
contending rival
WEAK
adverse opposite
Antonyms
STRONGEST
agreeable
WEAK
allied
ADJECTIVE
oppositional
Synonyms
WEAK
adversarial adverse against the grain allergic antagonistic antipathetic antithetical antonymous at cross-purposes at odds averse battling clashing combating conflicting confronting contrary controverting counter crossing defending defensive denying disagreeing disputed disputing dissentient enemy exposing facing gainsaying hostile in opposition incompatible inimical irreconcilable objecting obstructive opposed opposite protesting repelling restrictive rival up against warring
ADJECTIVE
resentful
Synonyms
STRONGEST
belligerent bitter hateful spiteful unsympathetic
WEAK
acrimonious adverse alien allergic argumentative bellicose catty chill cold competitive contentious contrary disapproving dour embittered hard ill-disposed inhospitable inimical malevolent malicious malignant militant nasty opposed opposite oppugnant ornery pugnacious rancorous scrappy sour surly unfavorable unfriendly unkind unpropitious unsociable unwelcoming viperous virulent vitriolic warlike
Antonyms
STRONGEST
helping kind nice pleasant
NOUN
foe
Synonyms
STRONGEST
adversary antagonist enemy rival
WEAK
boss hostile party
Antonyms
STRONGEST
ally assistant friend helper supporter
NOUN
opponent
Synonyms
STRONGEST
adversary aspirant candidate challenger competitor enemy foe opposition player rival
STRONG
antagonist assailant bandit bidder con contestant disputant entrant litigant match opposer
WEAK
boss counteragent dark horse dissentient oppugnant
Antonyms
STRONGEST
ally assistant friend helper
WEAK
associate colleague
NOUN
opposer
Synonyms
STRONG
adversary antagonist aspirant assailant bandit bidder candidate challenger competitor con contestant disputant enemy entrant foe litigant match opposition player resister rival
WEAK
counteragent dark horse dissentient oppositionist oppugnant
Antonyms
STRONG
ally assistant fan friend helper spectator supporter
NOUN
oppositionist
Synonyms
WEAK
adversary antagonist aspirant assailant bandit bidder candidate challenger competitor con contestant counteragent dark horse disputant dissentient enemy entrant foe litigant match opposer opposition oppugnant player resister rival
NOUN
resister
Synonyms
STRONG
adversary antagonist aspirant assailant bandit bidder candidate challenger competitor con contestant disputant enemy entrant foe litigant match opposer opposition player rival
WEAK
counteragent dark horse dissentient oppositionist oppugnant
Antonyms
STRONG
ally assistant fan friend helper spectator supporter

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.

It triggered up to eight times more interferon-gamma, an important anti tumor signal released by killer T cells.

From Science Daily • Feb. 18, 2026

Perhaps that could happen again if an anti AI slop challenger makes a move.

From BBC • Feb. 2, 2026

It also says "We strongly reject the notion – levelled from different sides of this conflict – that we are pro or anti any position".

From BBC • Jul. 14, 2025

Claire Bostrom-Smith, manager of King County’s health care-associated infections program, said in the blog post that C. auris is particularly concerning because it is resistant to common anti fungal medications.

From Seattle Times • Jan. 30, 2024

She tipped forward anti back, and the pocketbook swinging from her arm pummeled their heads.

From "A Long Way from Chicago" by Richard Peck

Vocabulary lists containing anti

4-letter words, List 1

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