a. [ OE. boistous; of uncertain origin; cf. W. bwyst wild, savage, wildness, ferocity, bwystus ferocious. ]
The waters swell before a boisterous storm. Shak. [ 1913 Webster ]
The brute and boisterous force of violent men. Milton. [ 1913 Webster ]
I like not that loud, boisterous man. Addison. [ 1913 Webster ]
The heat becomes too powerful and boisterous for them. Woodward. [ 1913 Webster ]
adv. In a boisterous manner. [ 1913 Webster ]
n. The state or quality of being boisterous; turbulence; disorder; tumultuousness. [ 1913 Webster ]