truthfulPronunciation: /ˈtruːθfʊl, -f(ə)l/Translate truthful | into French | into German | into Italian | into Spanish Definition of truthful adjective telling or expressing the truth; honest:I think you’re confusing being rude with being truthful I want a truthful answer (of artistic or literary representation) characterized by accuracy or realism; true to life:astonishingly truthful actingDerivatives truthfully adverb [sentence adverb]: truthfully, I never liked any of 'emtruthful in other Oxford dictionaries Definition of truthful in the US English dictionary