adjective, un·tru·er, un·tru·est.
- not true, as to a person or a cause, to fact, or to a standard.
- unfaithful; false.
- incorrect or inaccurate.
- incorrect or false
- diverging from a rule, standard, or measure; inaccurate
adj.Old English untreowe “unfaithful” (of persons), from un- (1) “not” + true (adj.). Cf. Middle Dutch ongetrouwe, Middle Low German ungetruwe, Old High German ungitriuwi, Old Norse utryggr. Meaning “contrary to facts” is attested from c.1300.