unchangeable

Strong’s Dictionary of Greek Words:

Number:
531 (find all occurrences in KJV Bible)
Greek:
ἀπαράβατος
Transliteration:
aparabatos
Phonic:
ap-ar-ab’-at-os
Meaning:
from 1 (as a negative particle) and a derivative of 3845; not passing away, i.e. untransferable (perpetual)
KJV Usage:
unchangeable