not to be quenched, unquenchable

Strong’s Dictionary of Greek Words:

Number:
762 (find all occurrences in KJV Bible)
Greek:
ἄσβεστος
Transliteration:
asbestos
Phonic:
as’-bes-tos
Meaning:
from 1 (as a negative particle) and a derivative of 4570; not extinguished, i.e. (by implication) perpetual
KJV Usage:
not to be quenched, unquenchable