Adjective pithy has 1 sense
  1. pithy, sententious - concise and full of meaning; "welcomed her pithy comments"; "the peculiarly sardonic and sententious style in which Don Luis composed his epigrams"- Hervey Allen
    Antonym: prolix (indirect, via concise)
,Adverbial pithy has 1 sense
  1. pithy, sententiously - in a pithy sententious manner; "she expressed herself pithily"
    Derived from adjective pithy1
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