ἄτεγκτος

A. not to be softened by water, χαλκός Arist. Mete. 385b13; κηρός Plu. 2.15d (s. v. l.).

II. metaph., not to be softened, παρηγορήμασιν A. Fr. 348: abs., hard-hearted, relentless, S. OT 336, E. HF 833, Ar. Th. 1047, and in late Prose, D.H. 5.8, J. BJ 5.9.4, Plu. TG 12, Luc. DMeretr. 12.3, etc. Adv. ‐τως, πρὸς ἔρωτας ἔχειν Philostr. Ep. 5.