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



BrE BrE//ˈbɔɪstərəs//
; NAmE NAmE//ˈbɔɪstərəs//
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(of people, animals or behaviour) noisy and full of life and energy It was a challenge, keeping ten boisterous seven-year-olds amused. The children and the dogs raced out of the house to give me a boisterous welcome. See related entries: Energetic Word Originlate Middle English (in the sense ‘rough, stiff’): variant of earlier boistuous ‘rustic, coarse, boisterous’, of unknown origin.
See the Oxford Advanced American Dictionary entry: boisterous