Synonyms of the word 
UNSATISFIABLE → INSATIABLE - INSATIATE - UNSATIABLE
unsatisfiable
- adj. Not satisfiable. Unable to be satisfied.
insatiable
- adj. Not satiable; incapable of being satisfied or appeased; very greedy.
insatiate
- adj. That is not satiated; insatiable.
unsatiable
- adj. Obsolete form of insatiable.
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