un·truth·ful /-ˈtruθfəl/
  (a.)不真實的,虛偽的,不誠實的
  Un·truth·ful a. Not truthful; unveracious; contrary to the truth or the fact. -- Un*truth*ful*ly, adv. -- Un*truth*ful*ness, n.
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  untruthful
       adj : not expressing or given to expressing the truth; "the
             statement given under oath was untruthful"; "an
             untruthful person" [ant: truthful]