quenchless

from WordNet (r) 3.0 (2006)

quenchless
    adj 1: impossible to quench; "unquenchable thirst" [syn:
           {quenchless}, {unquenchable}]

from The Collaborative International Dictionary of English v.0.48

Quenchless \Quench"less\, a.
   Incapable of being quenched; inextinguishable; as, quenchless
   fire or fury. "Once kindled, quenchless evermore." --Byron.
   [1913 Webster]

   Syn: Inextinguishable; unquenchable.
        [1913 Webster] -- {Quench"less*ly}, adv. --
        {Quench"less*ness}, n.
        [1913 Webster]