Definition of know-all in English:



  • A person who behaves as if they know everything.

    ‘you're a bumptious little know-all at times’
    as modifier ‘a know-all panellist’
    • ‘It ought to be easy to argue that egalitarian social goals are best pursued by crushing bureaucracy, by taking power away from know-all Islington lawyers and restoring control of people's working lives to them.’
    • ‘He told the conference journalists are often ‘disconnected snobs and pompous know-alls who let the concerns of real people drop off the radar.’’
    • ‘Governments should stop soliciting the opinions of these unrepresentative know-alls, for the chances are they actually know even less than the average politician.’
    • ‘He is a know-all with no sports qualifications.’
    • ‘Either the Kiwis wipe the floor with us and the commentators gloat ‘told-you’, or we'll win and hopefully shut up the whining, carping know-alls - for a week at least’
    • ‘Some know-alls blame the woman for having accepted a lift late in the evening.’
    • ‘A dignified and captivating sage, with views on life that are as admirable as those he has on football, he is confident yet devoid of arrogance, realistic without lacking enthusiasm, knowledgeable but never a know-all.’
    • ‘And seeing that I'm such a smart ass know-all, why don't I run for a seat myself and see if I can do any better?’
    • ‘When the policy is released, it should be exposed in detail, rather it being automatically put-down by some know-all columnist.’
    • ‘By tradition, doctors do not like to admit ignorance, or that we're not know-alls.’
    • ‘And Emma, who is, quite frankly, a bit of a know-all, says it's the same in Latin.’
    • ‘Some of them seem to change from ordinary members of the public into pretentious know-alls who have a totally disproportionate impression of their status.’
    • ‘Even the codiscoverer of the DNA double helix, Sir Francis Crick, displayed humility that is totally lacking in the present day know-alls.’
    • ‘And to show what a know-all he is, he names them: Villa, Albion, Wednesday, Forest, Stanley, County, Wanderers, North End, City, Rovers and Heath.’
    • ‘Southerners think that all northerners are cloth-capped thickies, while northerners think that most southerners are over-paid, loud-mouthed know-alls.’
    • ‘Be willing to learn from others, don't be a know-all, watch how the local anglers do things and you'll probably start getting into the fish.’
    • ‘One said: ‘He's not very popular because he's such a know-all.’’
    • ‘And so now, since I am apparently such a know-all, you will want to know what my vision of the future is.’
    • ‘Despite his reputation as a know-all, he had charisma and went on to become president of the students' union at Strathclyde.’
    • ‘They make an odd pair: the boy is tall, handsome, brilliant, a classic know-all with immense charm; the father seems older than his real age, depressed, a drunk, somewhere between being amused by and aghast at his own son.’
    smart alec, wise guy, smarty, smarty-pants
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