G0564
ἀπερίτμητος
uncircumcised
ἀ-περί-τμητος, -ον (περιτέμνω), [in LXX chiefly for עָרֵל ;] uncircumcised; metaphorically (τ.) καρδίαις (cf. Jer.9:26, al.): Act.7:51 (ἄσημος, found in π., appears to have been the word used by Greek-speaking Egyptians: see Deiss., BS, 153; cf. also Cremer, 885; MM, see word)† (AS)
Full Thayer's lexicon entry
ἀπερίτμητος — aperítmētos
ἀπερίτμητος, ἀπεριτμητον (περιτέμνω), uncircumcised; metaphorically, ἀπερίτμητοι τῇ καρδία (Jer 9:26; Eze 44:7) καί τοῖς ὠσί (Jer 6:10) whose heart and ears are covered, i. e. whose soul and senses are closed to divine admonitions, obdurate, Act 7:51. (Often in the Sept. for עָרֵל; 1Ma 1:48 1Ma 2:46; (Philo de migr. Abr. § 39); Plutarch, am. prol. 3.)
1 occurrence