a. | 1. | Attended by, or making, a loud and tumultuous noise; clamorous; noisy; vociferous. |
2. | Resistant to control; unruly. |
Adj. | 1. | obstreperous - noisily and stubbornly defiant; "obstreperous boys" |
2. | obstreperous - boisterously and noisily aggressive; "kept up an obstreperous clamor" |