adjective
unable to be satisfied or extinguished
-
The scientist's curiosity was unquenchable, driving him to explore every corner of the unknown.
-
Once she starts shopping, her desire for new clothes is unquenchable.
-
His thirst for adventure is absolutely unquenchable - he's always looking for the next thrill.
-
The fire of passion between them was unquenchable, burning brighter with each passing day.