| a. | 1. | Rough or rude; unbending; unyielding; strong; powerful. |
| 2. | Exhibiting tumultuous violence and fury; acting with noisy turbulence; violent; rough; stormy. | |
| 3. | Noisy; rough; turbulent; | |
| 4. | Vehement; excessive. |
| Adj. | 1. | boisterous - 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" |
| 2. | boisterous - full of rough and exuberant animal spirits; "boisterous practical jokes"; "knockabout comedy" Synonyms: knockabout | |
| 3. | boisterous - violently agitated and turbulent; "boisterous winds and waves"; "the fierce thunders roar me their music"- Ezra Pound; "rough weather"; "rough seas" |