Definition of desperado noun from the Oxford Advanced Learner's Dictionary

 

desperado

 noun
noun
BrE BrE//ˌdespəˈrɑːdəʊ//
 
; NAmE NAmE//ˌdespəˈrɑːdoʊ//
 
(pl. desperadoes, desperados)(old-fashioned)
 
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a man who does dangerous and criminal things without caring about himself or other people Word Origin early 17th cent.: pseudo-Spanish alteration of the obsolete noun desperate. Both desperate and desperado originally denoted a person in despair or in a desperate situation, hence someone made reckless by despair.
See the Oxford Advanced American Dictionary entry: desperado