Know-it-all
Know-it-all Know"-it-all`, n. One who knows everything; hence, a person who makes pretension to great knowledge, especially one whose didactic conversational habit conspicuously reveals his belief that he has superior knowledge on many subjects; a wiseacre; a know-all; -- usually ironical. [Colloq. & pejorative]

Note: the use of this term implies that the speaker disapproves of this behavior, and may think that it is unjustified [1913 Webster +PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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