UNTRUTHFUL Meaning of UNTRUTHFUL in English untruthful BrE AmE ( ˌ ) ʌn ˈtruːθ f ə l -fʊl ▷ untruthful|ly ‿i▷ untruthful|ness nəs nɪs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012