adjective
1.
capable of being thought about
concepts that are easy enough to be thinkable
Synonyms: cogitable
Related Word: imaginable, presumable, supposable; comprehendible, comprehensible
Contrasted words: unimaginable; incomprehensible, uncomprehensible
Antonyms: unthinkable
2.
capable of being made actual
nationalism at this time would be scarcely thinkable
Synonyms: conceivable, imaginable, supposable
Related Word: likely, possible; convincing, plausible; feasible, practicable, practical
Contrasted words: inconceivable, unimaginable; impossible, unlikely; implausible; impractical, unfeasible
Antonyms: unthinkable