Definition of truculent adjective from the Oxford Advanced American Dictionary

 

truculent

 adjective
adjective
NAmE//ˈtrʌkyələnt//
 
(formal)(disapproving)
 
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tending to argue or be bad-tempered; slightly aggressive “What do you want?” he asked, sounding slightly truculent.
NAmE//ˈtrʌkyələns//
 
noun [uncountable]
truculently
 
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adverb
See the Oxford Advanced Learner's Dictionary entry: truculent