'Boisterous' definitions:

Definition of 'boisterous'

(from WordNet)
adjective
Noisy and lacking in restraint or discipline; "a boisterous crowd"; "a social gathering that became rambunctious and out of hand"; "a robustious group of teenagers"; "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"; "an unruly class" [syn: boisterous, rambunctious, robustious, rumbustious, unruly]
adjective
Full of rough and exuberant animal spirits; "boisterous practical jokes"; "knockabout comedy" [syn: boisterous, knockabout]
adjective
Violently agitated and turbulent; "boisterous winds and waves"; "the fierce thunders roar me their music"- Ezra Pound; "rough weather"; "rough seas" [syn: boisterous, fierce, rough]

Definition of 'Boisterous'

From: GCIDE
  • Boisterous \Bois"ter*ous\, a. [OE. boistous; of uncertain origin; cf. W. bwyst wild, savage, wildness, ferocity, bwystus ferocious.]
  • 1. Rough or rude; unbending; unyielding; strong; powerful. [Obs.] "Boisterous sword." "Boisterous hand." --Shak. [1913 Webster]
  • 2. Exhibiting tumultuous violence and fury; acting with noisy turbulence; violent; rough; stormy. [1913 Webster]
  • The waters swell before a boisterous storm. --Shak. [1913 Webster]
  • The brute and boisterous force of violent men. --Milton. [1913 Webster]
  • 3. Noisy; rough; turbulent; as, boisterous mirth; boisterous behavior. [1913 Webster]
  • I like not that loud, boisterous man. --Addison. [1913 Webster]
  • 4. Vehement; excessive. [R.] [1913 Webster]
  • The heat becomes too powerful and boisterous for them. --Woodward. [1913 Webster]
  • Syn: Loud; roaring; violent; stormy; turbulent; furious; tumultuous; noisy; impetuous; vehement. [1913 Webster]