(adj): intentionally untrue
(adj): plausible but false
(adj): prenominal) -- (concocted with intent to deceive
(adj): not according with the facts
(adj): arising from error
(adj): vs. correct), wrong (vs. right) -- (not correct; not in conformity with fact or truth
(adj): erroneous and usually accidental
(adj): vs. valid) -- (having no cogency or legal force
(adj): deliberately deceptive
(adj): vs. sincere) -- (lacking sincerity
(adj): inappropriate to reality or facts
(adj): vs. realistic) -- (not realistic
(adj): not genuine or real; being an imitation of the genuine article
(adj): vs. natural), unreal -- (contrived by art rather than nature
(adj): designed to deceive
(adj): vs. honest), dishonorable -- (deceptive or fraudulent; disposed to cheat or defraud or deceive
(adj): inaccurate in pitch
(adj): vs. harmonious), unharmonious -- (not in harmony
(adj): adopted in order to deceive
(adj): vs. genuine), imitative -- (not genuine; imitating something superior
(adj): (used especially of persons) not dependable in devotion or affection; unfaithful
(adj): vs. constant) -- (likely to change frequently often without apparent or cogent reason; variable
(adv): in a disloyal and faithless manner