Definition of untrue in US English:



  • 1Not in accordance with fact or reality; false or incorrect.

    ‘these suggestions are totally untrue’
    ‘a malicious and untrue story’
    • ‘He knew this representation of fact to be untrue.’
    • ‘The fact that the story was untrue would not have prevented him from relying on this defence and succeeding in it.’
    • ‘Both claims are in fact untrue, but that this was these people's idea of positive propaganda says it all.’
    • ‘He told the jury the woman's story was untrue.’
    • ‘So one of the biggest errors we saw were when they would interview patients, and the patient would tell them some medical fact that was untrue, and they wouldn't check on it.’
    • ‘Sometimes, I tell untrue stories about myself to make my life seem more interesting.’
    • ‘Most of the information he had given to Diane earlier was falsified and untrue, and this fact might just lead to the fall of the Northern Coast and its Stands.’
    • ‘Reports that the former Tasmanian governor was negotiating to sell his story were untrue, a leading public relations company said today.’
    • ‘CBS was embarrassed when it was revealed that they had published a story containing an untrue element.’
    • ‘The representation was in fact untrue, but its untruth would only be brought home to them if the outgoings not included were reflected in increased levies on them.’
    • ‘Well, I know for a fact that this is untrue: the old girl merely sent over an old wig and a pair of inflatable waterwings and demanded that all opera glasses were removed from the auditorium.’
    • ‘I do not try to debunk every untrue story, but here are half a dozen.’
    • ‘A fact being irrelevant is not the same thing as a fact being untrue.’
    • ‘This was in fact untrue as the vessel was not damaged and was not in danger of sinking.’
    • ‘If a story was untrue when it was made up, then the passage of millennia does not make it any more true!’
    • ‘Some of the other matters about exaggeration, invention of untrue stories and so forth, may arguably contravene the section.’
    • ‘That statement is untrue; in fact the opposite is the case.’
    • ‘This, in fact, is untrue: there's nothing in the state constitution that prohibits him from recognizing the union.’
    • ‘That is demonstrably false and totally untrue.’
    • ‘Since the hints and allegations presented thus far are unsupported and in fact untrue, it would be hard indeed to determine their impacts on operations.’
    false, untruthful, fabricated, made up, invented, concocted, trumped up
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  • 2predicative Not faithful or loyal.

    • ‘To do voluntary work for any other reason is to be untrue to the very meaning of the term.’
    • ‘What would all the writers I admired think if they knew one of their own was being untrue to himself?’
    • ‘It is not untrue to Poe, whose work is littered with beautiful but dead wives.’
    • ‘He spots the boyfriend leaving and thinks she is being untrue to him.’
    • ‘The screenwriter should give the film its own coherent and persuasive narrative, with an approach that discards the issue of being true or untrue to the original.’
    • ‘Ultimately, our calling is to be true to God, even if that means that we are deemed by our people to be untrue to them.’
    • ‘She would rather kill herself than be untrue to her Romeo.’
    • ‘You must believe you can win, otherwise you're being untrue to yourself.’
    • ‘‘I believe in music’ is her motto and she has never been untrue to it.’
    • ‘It is pointless to object that Henry is here untrue to himself, when the point is that the old self has been destroyed.’
    • ‘This does not give me a feeling of being untrue to myself; quite the contrary.’
    • ‘I am surprised at what he said, and I think he has been a bit untrue to this House.’
    • ‘All in all, he and his collaborators have produced a film that, despite its visual impact, is ultimately untrue to the original.’
    • ‘Her motto hasn't made her happy, but she's never made herself unhappy by being untrue to herself.’
    • ‘It came about from an awareness that grew from observing people in Mauritius who had the symptoms of fragmented thinking and were being untrue to their inner feelings.’
    • ‘They will do anything to present a good picture, even if that means being untrue to what they really believe.’
    • ‘Hypocrisy, from the Ancient Greek word hypocrites - actor - is the condition of somebody who is untrue to their stated ideals.’
    • ‘What I disliked and thought was untrue to the series was the way that the group disintegrated with that death.’
    • ‘It means, of course, almost nothing - how can one be untrue to oneself?’
    • ‘If we'd done that, it would have been untrue to the character and wouldn't have been right for the story.’
    unfaithful, disloyal, faithless, false, false-hearted, treacherous, traitorous, perfidious, deceitful, deceiving, untrustworthy, duplicitous, double-dealing, two-faced, janus-faced, insincere, unreliable, undependable, inconstant
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  • 3Incorrectly positioned or balanced; not upright or level.

    • ‘Our adjustable frame systems allow for untrue walls and our kits are delivered fully assembled.’


Old English untrēowe ‘unfaithful’ (see un-, true).