sinfulPronunciation: /ˈsɪnfʊl, -f(ə)l/Translate sinful | into German | into Italian | into Spanish Definition of sinful adjective wicked and immoral; committing or characterized by the committing of sins:sinful men a sinful way of life highly reprehensible:a sinful wasteDerivatives sinfully adverb sinfulness noun Origin: Old English synfull (see sin1, -ful)sinful in other Oxford dictionaries Definition of sinful in the US English dictionary
