Insatiable means impossible to satisfy. An insatiable appetite, insatiable curiosity, insatiable demand.
It goes with appetites of every kind — for food, for information, for growth — and it is used approvingly of curiosity and disapprovingly of most other things. Insatiable demand is the standard phrase in economics for a want that expands as it is met. Note insatiably; satiate and sated, which do the opposite work; and satisfy, from the same Latin root meaning enough.
1adjectiveinsatiableImpossible to satisfy.
“The boy had an insatiable appetite for books and read everything in the library.”
synonyms: unquenchable, voracious
insatiable is a quality of unsatisfiability.
Latin insatiabilis is in- plus satiare, to satisfy, from satis, enough. Satisfy, saturate and satiate come from the same enough.
Latin
insatiabilis
Old French
insaciable
Middle French
insatiable
Middle English
insaciable
English, today
insatiable
Middle English insaciable, from Middle French insatiable, from Old French insaciable, from Latin insatiabilis. by surface analysis, in- + satiable.
Etymology from Wiktionary, CC BY-SA
Practised in Sharper Adjectives