untrue

adjective

un·​true ˌən-ˈtrü 

1

: not faithful : disloyal

discovered his friends were untrue

untrue to one's duty

2

: not according with a standard of correctness : not level or exact

untrue doors

3

: not according with the facts : false

… led the witness almost immediately, in his deposition, into a demonstrably untrue answer

—Renata Adler

untruly

ˌən-ˈtrü-lē 

adverb

Synonyms of untrue

• erroneous
• inaccurate
• incorrect
• wrong
• false

Examples of untrue in a Sentence

He made untrue statements to the press.

Her lover had been untrue.

Recent Examples on the Web

Platner has repeatedly called those allegations of violence untrue. —ABC News, 7 June 2026

Unfortunately, in our legal system, anyone can file a lawsuit alleging anything, truthful or not, and then hide behind litigation privilege to justify the most salacious allegations, no matter how untrue and untested. —Rachel Desantis, PEOPLE, 5 June 2026

The caller told them a family member had been detained, which was untrue, and demanded money for legal expenses. —Kassia Bonesteel, CBS News, 4 June 2026

The first is that the task of governance, always hard, gets harder when true and untrue information is fired from every cellphone tower and when the public has no political memory to speak of. —Nathan Heller, New Yorker, 1 June 2026

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Rhymes for untrue

• blew
• blue
• boo
• brew
• chew
• chou
• clue
• coo
• coup
• crew
• cue
• dew

Kids Definition

untrue

adjective

un·​true ˌən-ˈtrü 

ˈən-

1

: not faithful : disloyal

2

: not meeting a standard of correctness : not level or exact

3

: not agreeing with the facts : false

an untrue statement

untruly

-ˈtrü-lē 

adverb