adjective
untrue
uhn-TROO
adjective
1
Not true; false.
"The rumor turned out to be completely untrue."
"It's untrue that the company knew about the defect."
2
Not faithful or loyal to someone.
"He was untrue to his wife for years before she found out."
How to Use Untrue
Learner’s notesIn plain EnglishEither factually false, or disloyal to a person you owe faithfulness to.
Common pairings
prove untrue
untrue to
patently untrue
Word Forms
more untrue comparative, most untrue superlative
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Etymology
From Old English untrīewe, from un- (\"not\") plus true.