FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

ametameletos ἀμεταμέλητος — am-et-am-el'-ay-tos — from 1 (as a negative particle) and a presumed derivative of 3338; irrevocable:--without repentance, not to be repented of.

see GREEK for 1

see GREEK for 3338