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

 

grisly

 adjective
adjective
BrE BrE//ˈɡrɪzli//
 
; NAmE NAmE//ˈɡrɪzli//
 
[usually before noun](grislier, grisliest)
 
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extremely unpleasant and frightening and usually connected with death and violence a grisly crime Word Origin Old English grislic ‘terrifying’, of Germanic origin; related to Dutch griezelig.
See the Oxford Advanced American Dictionary entry: grisly