unsupportable
Definitions
Incapable of being defended or justified; untenable.
Too painful, unpleasant, or difficult to be endured; intolerable.
Examples
The constant noise from the construction site became completely unsupportable for the residents.
He found the weight of his guilt to be unsupportable as the truth finally came to light.
Synonyms
intolerable unbearable insufferable indefensible unjustifiable inexcusable untenable
Antonyms
tolerable bearable defensible justifiable excusable tenable supportable