Answer: insatiate

AnswerCrossword Clue
INSATIATEUnappeasable.
INSATIATEIncapable of being satisfied.
INSATIATEEver avid.
INSATIATEBeyond gratification.
INSATIATENever satisfied.
INSATIATEVery greedy.
INSATIATELimitless in a way.
insatiateinsatiable
insatiateinsatiable; as, insatiate thirst