ἀδόκιμ-ος · adokim-os — LSJ
not legal tender, not current, of coin, Pl. Lg. 742a; not approved, of horses, Arist. Ath. 49.1.
unsatisfactory, unconvincing, of a statement, Ph. Bel. 76.47, Alex.Aphr. in Top. 576.14.
disreputable, λακίσματʼ ἀδόκιμʼ ὀλβίοις ἔχειν E. Tr. 497; μοῦσα Pl. Lg. 829d, cf. D. 25.36, Ep.Rom. 1.28. Adv. -μως Poll. 5.160.
of persons, Pl. R. 618b; discredited, reprobate, X. Lac. 3.3, 2 Ep.Tim. 3.8, etc.