Meanings
- 1
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2
adj
That cannot be supported; that cannot be demonstrated or proved. (of a statement, claim, argument, etc.)
[…] the energy debate is in danger of being corrupted by misstatements small and large. Among these is the insupportable proposition that the California energy crisis can somehow be relieved by drilling in the Arctic refuge — an idea Ms. Norton echoed when she said that new drilling would “resolve some of the problems we’ve been having lately.”.
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Thesaurus
3
adj
· incapable of being...
indefensible
From Middle French insupportable, from Late Latin insupportabilis. See also in- + supportable.