Strong’s Greek
G415 — aneleemon
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
ἀνελεήμων
aneleemon — pronounced an-eleh-ay'-mone
from 1 (as a negative particle) and 1655; merciless:--unmerciful. see GREEK for 1 see GREEK for 1655
1 occurrence in the KJV.
Romans 1:31
Without understanding, covenantbreakers, without natural affection, implacable, unmerciful: