unquenchable[adjective]Synonyms: insatiable, insatiate, quenchless, unappeasable, unsatiate, unsatisfiable
Antonyms: quenchable
[TahlilGaran] English Synonym Dictionary ▲
un‧quench‧a‧ble /ʌnˈkwentʃəb
əl/
adjective an unquenchable desire is one that is impossible to satisfy:
the seemingly unquenchable thirst (=desire) for Western art [TahlilGaran] Dictionary of Contemporary English ▲