1) Capable of being conceived 2) Capable of being imagined 3) Imaginable 4) Possible 5) That you can imagine 6) That you can think of 1) Cogitable 2) Earthly 3) Imaginable 4) Possible 5) Reasonable 6) Thinkable 
• (a.) Capable of being conceived, imagined, or understood.
Con·ceiv'a·ble adjective [ Confer French concevable .] 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. &...
[adj] - possible to conceive or imagine 2. [adj] - within the bounds of what may be conceived within the framework of nature
imaginable adjective capable of being imagined; `that is one possible answer`
capable of being conceived; imaginable.