1 : free from any effort to soften to disguise; "the plain and unvarnished truth"; "the unvarnished candor of old people and children"
2 : not mixed with extraneous elements; "plain water"; "sheer wine"; "not an unmixed blessing"
3 : clearly revealed to the mind or the senses or judgment; "the effects of the drought are apparent to anyone who sees the parched fields"; "evident hostility"; "manifest disapproval"; "patent advantages"; "made his meaning plain"; "it is plain that he is no reactionary"; "in plain view"; "a palpable lie"
