The Collaborative International Dictionary
Inextinguishably
Inextinguishably \In`ex*tin"guish*a*bly\, adv. So as not to be extinguished; in an inextinguishable manner.
Wiktionary
inextinguishably
adv. In a way that cannot be extinguished; immortally.
Usage examples of "inextinguishably".
The bursting charge scattered fire like the Christian Hell, and it burned inextinguishably, some wonderful art making it impossible to put out with water.