Reverse Dictionary: UNBEARABLE

ADJECTIVES
1386 IMPORTABLE too grievous or painful to be borne; unbearable, unendurable → obs.
1905 UNBIDEABLE unbearable, intolerable → Eng. dial. (Bk.)

ADVERBS
1420 IMPORTABLY unbearably, intolerably → obs.

NOUNS
1677 IMPORTABLENESS unbearableness → obs.
..19CTHE FINAL STRAW a slight addition to a burden or difficulty that makes it finally unbearable 
..19CTHE LAST STRAW a slight addition to a burden or difficulty that makes it finally unbearable 
..19CTHE LAST STRAW THAT BREAKS THE CAMEL’S BACK a slight addition to a burden or difficulty that makes it finally unbearable 
1868THE FINAL STRAW THAT BREAKS THE CAMEL’S BACK a slight addition to a burden or difficulty that makes it finally unbearable