Thinkable

a.

1.

Capable of being thought or conceived; cogitable.

Adj.

1.

thinkable - capable of being conceived or imagined or considered Antonyms: unthinkable - incapable of being conceived or considered

believable, cogitable, conceivable, conceivably possible, contingent, credible, fanciable, feasible, humanly possible, imaginable, likely, plausible, possible, potential, probable, reasonable, supposable, tenable