insatiable
/ɪnˈseɪʃjəbl/adjective
1- (of an appetite or desire) impossible to satisfy（胃口, 欲望）不能满足的：
an insatiable hunger for success.
对成功的永不满足的渴望。
1.1
- (of a person) having an insatiable appetite or desire for something, especially sex（人）（尤指对性）贪得无厌的, 不知足的; 欲壑难填的。
派生词
insatiability
nouninsatiably
adverb词源
late Middle English: from Old French insaciable or Latin insatiabilis, from in- 'not' + satiare 'fill, satisfy' （see SATIATE）.