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



BrE BrE//ˈperələs//
; NAmE NAmE//ˈperələs//
(formal or literary)
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very dangerous synonym hazardous a perilous adventure/journey Word OriginMiddle English: from Old French perillous, from Latin periculosus, from periculum ‘danger’, from the base of experiri ‘to try’.
See the Oxford Advanced American Dictionary entry: perilous

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