ὑπεναντιότης
From LSJ
Τούτῳ τῷ λόγῳ χρήσαιτο ἄν τις ἐπ' ἐκείνων τῶν ἀνθρώπων οἳ παραδόξως ἀλαζονεύονται, μηδὲ τὰ κοινὰ τοῖς ἀνθρώποις ἐπιτελεῖν δυνάμενοι → One would use this fable for those who give themselves unreasonable airs, but can't handle everyday life (Aesop 40)
English (LSJ)
ητος, ἡ,
A opposition, Epicur.Ep.1p.28U., Nat.117 G., Str.10.2.12; ἡ τούτων (v.l. τῶν ἱερῶν) ὑ. J.Ap.1.25. II Math., subcontrariety, Nicom.Ar.2.28.