inextinguishable

from WordNet (r) 3.0 (2006)

inextinguishable
    adj 1: difficult or impossible to extinguish; "an
           inextinguishable flame"; "an inextinguishable faith"
           [ant: {extinguishable}]

from The Collaborative International Dictionary of English v.0.48

Inextinguishable \In`ex*tin"guish*a*ble\, a.
   Not capable of being extinguished; extinguishable;
   unquenchable; as, inextinguishable flame, light, thirst,
   desire, feuds. "Inextinguishable rage." --Milton.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

23 Moby Thesaurus words for "inextinguishable":
      deathless, enduring, eternal, everlasting, immortal, imperishable,
      impregnable, incorruptible, indelible, indestructible,
      ineffaceable, ineradicable, inexpugnable, invincible, invulnerable,
      irrefragable, irrepressible, nonperishable, quenchless, undampable,
      undestroyable, undying, unquenchable

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