CONCEIVABLE
conceivable, imaginable
(adjective) capable of being imagined; “that is one possible answer”
Source: WordNet® 3.1
Etymology
Adjective
conceivable (not comparable)
Capable of being conceived or imagined
Synonyms: imaginable, possible, credible, thinkable
Antonyms
• inconceivable
Source: Wiktionary
Con*ceiv"a*ble, a. Etym: [Cf. F. concevable.]
Definition: Capable of being conceived, imagined, or understood. "Any
conceivable weight." Bp. Wilkins.
It is not conceivable that it should be indeed that very person whose
shape and voice it assumed. Atterbury.
– Con*ceiv"a*ble*ness, n.
– Con*ceiv"a*bly, adv.
Source: Webster’s Unabridged Dictionary 1913 Edition