— boisterously , adv. — boisterousness , n.
/boy"steuhr euhs, -streuhs/ , adj.
1. rough and noisy; noisily jolly or rowdy; clamorous; unrestrained: the sound of boisterous laughter.
2. (of waves, weather, wind, etc.) rough and stormy.
3. Obs. rough and massive.
[ 1425-75; late ME boistrous, var. of ME boistous crude, strong, fierce, gross; of obscure orig. ]
Syn. 1. uproarious, obstreperous, roistering, loud, vociferous, impetuous. 1, 2 . tempestuous, tumultuous, turbulent, violent, wild.
Ant. 1, 2. calm, serene.