ἐναντιολόγος
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
Spanish (DGE)
-ον
que se opone, oponente οὐχ ὡς ἀγνώμων οὐδὲ ὡς ἐ. Simp.in Cael.57.14, cf. 58.15, in Ph.131.31.