Mental

a.	1.	(Anat.) Of or pertaining to the chin; genian; as, the mental nerve; the mental region.
n.	1.	(Zool.) A plate or scale covering the mentum or chin of a fish or reptile.
a.	1.	Of or pertaining to the mind; intellectual; as, mental faculties; mental operations, conditions, or exercise. What a mental power This eye shoots forth! - Shak. Mental alienation insanity. Mental arithmetic the art or practice of solving arithmetical problems by mental processes, unassisted by written figures.

Adj.	1.	mental - involving the mind or an intellectual process; "mental images of happy times"; "mental calculations"; "in a terrible mental state"; "mental suffering"; "free from mental defects" Antonyms: physical - involving the body as distinguished from the mind or spirit; "physical exercise"; "physical suffering"; "was sloppy about everything but her physical appearance"
	2.	mental - of or relating to the mind; "mental powers"; "mental development"; "mental hygiene"
	3.	mental - of or relating to the chin- or lip-like structure in insects and certain mollusks
	4.	mental - of or relating to the chin or median part of the lower jaw Synonyms: genial
	5.	mental - affected by a disorder of the mind; "a mental patient"; "mental illness"

abnormal, abstract, affective, balmy, bananas, barmy, batty, bereft of reason, bonkers, brainsick, cerebral, certifiable, characteristic, cogitative, cognitive, concentrating, concentrative, conceptive, conceptual, conceptualized, constitutional, contemplating, contemplative, crackbrained, cracked, crackers, crazed, crazy, daft, deliberating, deliberative, deluded, demented, deprived of reason, deranged, disoriented, dispositional, distraught, disturbed, emotional, endopsychic, excogitating, flighty, fruity, hallucinated, ideative, ideological, immaterial, innate, inner, insane, intelligent, internal, introspective, irrational, loco, loony, lunatic, maddened, maniac, manic, mazed, meditating, meditative, mentally deficient, mentally ill, meshuggah, mindless, moon-struck, museful, musing, noetic, non compos, non compos mentis, noological, not all there, not right, nuts, nutty, odd, of unsound mind, off, pensive, perceptual, phrenic, pondering, prehensive, psychic, psychical, psycho, psychologic, psychological, psychotic, queer, reasonless, reflecting, reflective, ruminant, ruminating, ruminative, screwy, senseless, serious, sick, sober, speculative, spiritual, stark-mad, stark-staring mad, strange, subjective, telepathic, temperamental, tetched, theoretical, thought, touched, unbalanced, unhinged, unsane, unsettled, unsound, unstable, wandering, wistful, witless