A.act against, seek to counteract, “τινί” X.Ath.2.17, Alex.264 (Med.); “πρός τι” Arist.Pol.1320a6, etc.
2. abs., act in opposition, D.32.14; ὁ ἀντιπρήσσων, = ἀντιστασιώτης, Hdt.1.92; ἀ. τι oppose in any way, X.HG2.3.14; “ἐάν τε ἀντιπράττῃ τις ἐάν τε μὴ συμπράττῃ” Arist.Rh.1379a13; conflict with, tell against a theory, Demetr.Lac.Herc.1055.20:—Med., X. Hier.2.17.