Definition of with it in English:

with it

phrase

informal
  • 1Up-to-date or fashionable.

    ‘a young, with-it film buyer’
    • ‘They're aimed at young people wanting to be seen as hip and with it.’
    in fashion, in vogue, voguish, popular, up to date, bang up to date, up to the minute, modern, all the rage, modish, trendsetting
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  • 2usually with negative Alert and comprehending.

    ‘I'm not really with it this morning’
    quick-witted, sharp, bright, quick, keen, perceptive, wide awake, responsive, agile, acute, astute
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  • 3In addition; besides.

    ‘he seems a decent lad, and clever with it’