ἀτέραμνος

ον
A. unsoftened, hard, ὕδατα ib.1, Arist. GA 767a34; πέτρα Theoc. 10.7; ἀ. κοιλία costive, Hp. Aër. 4; of food that will not cook, Plu. 2.701c, Gal. 17(2).157.
II. metaph., stubborn, unfeeling, merciless, κῆρ Od. 23.167; ὀργή A. Pr. 192; βροντῆς μύκημ’ ἀ. ib. 1062.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project