Obstreperous
Pronunciation : Ob*strep"er*ous
Part of Speech : a.
Etymology : [L. obstreperus, from obstrepere to make a noise at; ob (see Ob-) + strepere to make a noise.]
Definition : Defn: Attended by, or making, a loud and tumultuous noise; clamorous; noisy; vociferous. "The obstreperous city." Wordsworth. "Obstreperous approbation." Addison. Beating the air with their obstreperous beaks. B. Jonson. -- Ob*strep"er*ous*ly, adv. -- Ob*strep"er*ous*ness, n.
Source : Webster's Unabridged Dictionary, 1913