'Supposable' definitions:

Definition of 'supposable'

From: WordNet
adjective
Capable of being inferred on slight grounds [syn: presumable, supposable, surmisable]

Definition of 'Supposable'

From: GCIDE
  • Supposable \Sup*pos"a*ble\, a. Capable of being supposed, or imagined to exist; as, that is not a supposable case. -- {Sup*pos"a*ble*ness}, n. -- {Sup*pos"a*bly}, adv. [1913 Webster]