English edit

Etymology edit

insider +‎ -ish

Adjective edit

insiderish (comparative more insiderish, superlative most insiderish)

  1. (informal) Like an insider; familiar with inner knowledge, in-jokes, etc.
    • 2013 January 27, Andy Beckett, “A user's guide to art-speak”, in The Guardian[1], retrieved 2020-12-07:
      The essay's tone – knowing, insiderish, never polemical, and constantly shifting between mockery and studied neutrality – probably accounts for some of its warm reception.