The principal or most severe critic; a supreme judge or evaluator of others' work or character.
From arch- (chief, principal) + critic (from Greek kritikos, from krinein 'to judge'). An archcritic is the most authoritative or harshest of critics.
Theater and literature are full of archcritics—think of the mean restaurant critic in Ratatouille who could destroy a chef's reputation with one bad review; they're the ultimate judges of quality!
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