operable vs operational

operable and operational both are adjectives.

Word	Noun	Adjective	Verb	Adverb
operable	No	Yes	No	No
operational	No	Yes	No	No

As adjectives, operable and operational are synonyms defined as:

Other synonyms of operable include functional, usable, useable.

operable (adjective)	operational (adjective)
capable of being treated by surgical operation	(military) of or intended for or involved in military operations
usable for a specific purpose	pertaining to a process or series of actions for achieving a result
fit or ready for use or service	being in effect or operation
	fit or ready for use or service