That cannot be quenched; unquenchable.

Something that quenches (thirst, fire, etc.)

plural of quencher

Able to be quenched.

The liquid used in the quenching process of metallurgy, or used to obtain rapid cooling in cryoscopy

(archaic) third-person singular simple present indicative form of quench

plural of quenchant

(archaic) second-person singular simple present form of quench

So as to quench or extinguish.

(obsolete) simple past tense and past participle of quench