Synonyms of inconsistent

inconsistent

adjective

ˌin-kən-ˈsi-stənt 

1

as in conflicting

not being in agreement or harmony

inconsistent theories make it difficult to settle on one explanation

Synonyms & Similar Words

• conflicting
• incompatible
• contradictory
• discrepant
• incongruous
• mutually exclusive
• repugnant
• contrary
• clashing
• inharmonious
• inconsonant
• disagreeing
• irreconcilable
• discordant
• at odds
• at variance
• opposite
• opposing
• antagonistic
• antithetical
• diametric
• antipodal
• antipodean

Antonyms & Near Antonyms

• consistent
• compatible
• congruent
• agreeing
• concordant
• consonant
• correspondent (with or to)
• harmonious
• conformable (to)
• similar
• like
• congruous
• accordant
• nonconflicting
• akin

2

as in volatile

likely to change frequently, suddenly, or unexpectedly

an inconsistent breeze was our only relief from the heat

Synonyms & Similar Words

• volatile
• unpredictable
• unstable
• changeful
• variable
• uncertain
• unsettled
• capricious
• inconstant
• mercurial
• fluctuating
• changeable
• erratic
• mutable
• fickle
• temperamental
• unreliable
• unsteady
• up in the air
• haphazard
• random
• fluid
• shaky
• arbitrary
• scattered
• skittish
• flickery
• slapdash
• aimless
• ambivalent
• stray
• hit-or-miss
• untrustworthy
• desultory
• undependable
• irregular
• dicey
• versatile
• vacillating
• wavering
• adaptable
• protean
• hesitating
• mobile
• shilly-shallying
• shilly-shally

Antonyms & Near Antonyms

• certain
• constant
• predictable
• stable
• steady
• invariable
• unchanging
• immutable
• unchangeable
• stationary
• uniform
• settled
• even
• persistent
• unvarying
• permanent
• durable
• changeless
• reliable
• lasting
• abiding
• true
• equable
• sure
• dependable
• trustworthy
• tried
• trusty
• tried-and-true

Example Sentences

Recent Examples of inconsistent

Fragmented systems, inconsistent data, undocumented business logic and years of workarounds will show up in the quality and reliability of what gets produced. — Atul Sabharwal, Forbes.com, 2 Sep. 2026

Riggs said the Teamsters’ safety argument is weakened by the inconsistent safety record of human truck drivers, who have fallen asleep at the wheel or driven while distracted or otherwise impaired. — Los Angeles Times, 29 Aug. 2026

Craig’s accuracy was inconsistent, especially in the screen game. — Steven Johnson, Fort Worth Star-Telegram, 29 Aug. 2026

The lawsuit says the decision was unlawful, unsupported by facts and inconsistent with the military’s past praise of Claude. — Reuters, NBC news, 28 Aug. 2026