intolerable (adj.)youdaoicibaDictYouDict[intolerable 词源字典]
late 14c., from Latin intolerabilis "that cannot bear, that cannot be borne," from in- "not, opposite of" (see in- (1)) + tolerabilis "that may be endured," from tolerare "to tolerate" (see toleration). Related: Intolerably.[intolerable etymology, intolerable origin, 英语词源]