Synonyms of untrue

untrue

adjective

ˌən-ˈtrü 

1

as in erroneous

not being in agreement with what is true

"the sky is purple" is an untrue statement

Synonyms & Similar Words

• erroneous
• inaccurate
• incorrect
• wrong
• false
• misleading
• untruthful
• invalid
• inexact
• unsound
• distorted
• off base
• off
• deceptive
• specious
• fraudulent
• fictitious
• fallacious
• counterfactual
• illusory
• spurious
• delusive
• mendacious
• deceitful
• dishonest
• lying
• unproven
• unconfirmed
• invented
• delusory
• awry
• amiss
• untested
• fabricated
• askew
• made-up
• trumped-up

Antonyms & Near Antonyms

• true
• correct
• accurate
• factual
• valid
• right
• proper
• exact
• sound
• precise
• confirmed
• demonstrated
• veracious
• established
• perfect
• tested
• errorless
• proven
• impeccable
• flawless
• faultless
• letter-perfect

2

as in false

not true in one's allegiance to someone or something

untrue to his country in its time of need

Synonyms & Similar Words

• false
• traitorous
• unreliable
• treacherous
• disloyal
• unfaithful
• perfidious
• faithless
• inconstant
• fickle
• irresponsible
• untrustworthy
• recreant
• undependable
• uncertain
• hesitant
• dubious
• faltering
• irresolute
• uninterested
• trustless
• apathetic
• dispassionate
• vacillating
• wavering

Antonyms & Near Antonyms

• true
• constant
• faithful
• loyal
• reliable
• responsible
• fast
• steady
• devout
• steadfast
• solid
• trustworthy
• staunch
• dependable
• devoted
• dedicated
• down-the-line
• dutiful
• tried
• trusty
• confirmed
• intent
• unhesitating
• determined
• resolute
• unfaltering
• tried-and-true
• trustable
• enthusiastic
• inveterate
• unwavering
• passionate
• sworn
• fervent
• ardent
• impassioned
• fervid
• avid
• dyed-in-the-wool

Example Sentences

Recent Examples of untrue

The fact that this was untrue—Holmes had dyed his hair red, but not for that reason—did little to dispel the rumor, which seemed to fit the popular belief that violent, dystopian art has the power to induce some viewers to commit terrible crimes. — Literary Hub, 12 Aug. 2026

How Japan made use of the rumors The rumors, while untrue, did offer Japan an opportunity to position itself as an anti-colonial leader. — Mimi Hanaoka, The Conversation, 11 Aug. 2026

This little addendum—that politics mean nothing to the Bret Easton Ellis of 2023—is eminently untrue, as anyone who has listened to his podcast, which often turns to political commentary, will attest. — Leo Lasdun, New Yorker, 5 Aug. 2026

Seeing a lot of negative chatter out there, including claims that CPUs are not needed as much as thought in agentic AI (just untrue). — Jim Cramer, CNBC, 3 Aug. 2026