English

Definition of sinful adjective from the Oxford Advanced Learner's Dictionary

 

sinful

 adjective
adjective
BrE BrE//ˈsɪnfl//
 
; NAmE NAmE//ˈsɪnfl//
 
(formal)
 
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morally wrong or evil synonym immoral sinful thoughts It is sinful to lie. (informal) It's sinful to waste good food! Word Origin Old English synfull (see sin, -ful).
See the Oxford Advanced American Dictionary entry: sinful