ἀγνώμων

English (LSJ)

ον, gen. ονος, (γνώμη)

   A ill-judging, senseless, Thgn.1260 codd. (s.v.l.), Pi.O.8.60, Pl.Phdr. 275b; ὥσπερ κυνίδιον τοῖς εἴκουσιν ἀ. Phld.Lib.p.10 O.; opp. μετὰ λογισμοῦ πράττειν, Men.617; inconsiderate, τὸ ἄ. καὶ θυμοειδές Hp.Aët. 16. Adv.-όνως senselessly, X.HG6.3.11, etc.; ἀ. ἔχειν D.2.26.    2 headstrong, reckless, (in Comp.) Hdt.9.41: Sup., X.Mem.1.2.26.    3 unfeeling, hard-hearted, Φοίβῳ τε κἀμοὶ μὴ γένησθ' ἀγνώμονες S.OC86; of judges, X.Mem.2.8.5; joined with ἀχάριστος, Id.Cyr.8.3.49, cf. Mem.2.10.3, D.21.97; esp. ignoring one's debts, Ulp.ad D.2.26, Jul. Or.3.117e (Comp.); ἀ. περὶ τὰς ἀποδόσεις Luc.Herm.10.    4 unknowing, in ignorance, ἀ. πλανᾶσθαι Hp.Vict.1.6.    II of things, senseless, brute, Aeschin.3.244; also φρονοῦσαν θνητὰ κοὐκ ἀγνώμονα (neut. pl.) S.Tr.473.    2 cruel, πρᾶγμα ἄ. πάσχειν Parth. 17.5.    III of horses, without the teeth that tell the age (γνώμονες) Poll.1.182. [ᾰγν- only in Man.5.338.]