Definition of insincere in US English:



  • Not expressing genuine feelings.

    ‘she flashed him an insincere smile’
    • ‘It isn't that the crew members come across as being insincere.’
    • ‘Supporters have learned to recognise those insincere comments for what they are worth and treat them accordingly.’
    • ‘When they tout the virtues of this doctrine, they are being insincere.’
    • ‘Those displays of grief also happen to be insincere.’
    • ‘He was not afraid of her, and she sensed his bravery was genuine and not the result of insincere male bravado.’
    • ‘There were extraneous rounds of ‘love, love, love’, which made the whole song sound insincere.’
    • ‘He even hated the religiosity of Americans, calling it completely insincere.’
    • ‘This Joe asks questions, at times sounds insincere and at times doesn't know how to express the right emotion.’
    • ‘The monotonous words sounded fake and insincere, as if they were predetermined and he was only reciting the memorized lines in some sort of play.’
    • ‘To a healthy person, none of these comments seem unusual or insincere.’
    • ‘It's not an insincere smile, just rather mysterious: you see it neither arriving nor departing.’
    • ‘If you want to avoid insincere professionals, all you have to do is not pull out your cash or credit card when it comes to that portion of the transaction.’
    • ‘With an insincere apology, she shuffled off, furtively glancing over her shoulder to make sure no one had seen her colluding with a stranger.’
    • ‘One problem with almost all systems is that they're subject to insincere or strategic voting, a practice that all parties seem to encourage.’
    • ‘While having a positive and happy disposition, you are so sensitive that you can feel when others are being dishonest or insincere.’
    • ‘She describes this binding of her brother's death with a call to arms as insincere, hypocritical and exploitative.’
    • ‘Suddenly and surprisingly, his trademark insincere grin and reflexive eyebrow-raising have come into their own.’
    • ‘Hallie gave him a quick, insincere smile that looked more like a grimace.’
    • ‘Mostly this is because they are simply insincere, and say what they say maliciously and in knowledge of its falsehood.’
    • ‘One man's face time in the television segment had to be cut down because he came off as much more insincere on screen than on the radio.’
    false, fake, hollow, artificial, feigned, pretended, put-on, exaggerated, overdone, lacking sincerity, not candid, not frank
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Mid 17th century: from Latin insincerus, from in- ‘not’ + sincerus ‘sincere’.