'Unsupportable' definitions:

Definition of 'unsupportable'

From: WordNet
adjective
Not able to be supported or defended

Definition of 'Unsupportable'

From: GCIDE
  • Unsupportable \Un`sup*port"a*ble\, a. Insupportable; unendurable. -- {Un`sup*port"a*ble*ness}, n. --Bp. Wilkins. -- {Un`sup*port"a*bly}, adv. [1913 Webster]

Synonyms of 'unsupportable'

From: Moby Thesaurus