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1. Impossible to slake or satisfy: unquenchable thirst.
2. Impossible to suppress or destroy: unquenchable enthusiasm.

un·quench′a·bly adv.


in an unquenchable manner
References in classic literature ?
He was the centre and the head of the revel, unquenchably joyous, a contagion of fun.
From an original screenplay by Steven Moffat, Edgar Wright and Joe Cornish, the story follows the unquenchably curious young reporter Tintin and his fiercely loyal dog Snowy as they discover a ship carrying an explosive secret that may hold the key to vast fortune .
1 With warm regards and all good wishes Paul JUST THINK: the Moorsoldat * of Masada acquires a homeland, most unquenchably against each barb in the wire.