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



BrE BrE//ɪmˈpɪəriəs//
; NAmE NAmE//ɪmˈpɪriəs//
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expecting people to obey you and treating them as if they are not as important as you The professor was as imperious as ever. She put out an imperious hand to stop him. an imperious gesture/voice/command She waved an imperious hand. Word Originmid 16th cent.: from Latin imperiosus, from imperium ‘command, authority, empire’; related to imperare ‘to command’. Compare with imperial.
See the Oxford Advanced American Dictionary entry: imperious