obstreperous C2 Topic:Register & Style US /əbˈstɹɛpəɹəs/ UK /əbˈstɹɛp.əɹ.əs/ See IPA manual Freq #116009 Meanings 1 adj boisterously and noisily aggressive Kept up an obstreperous clamor. 2 adj noisily and stubbornly defiant Obstreperous boys. Thesaurus Word family Derived forms obstreperosityobstreperouslyobstreperousnessstroppyunobstreperous Etymology Borrowed from Latin obstreperus, first attested circa 17th c. Compare obstropulous. Topics Register & Style External links Cambridge Dictionary Wiktionary Google Images # obstreperous **Type:** Word **Level:** C2 **Part of speech:** adj **IPA (US):** /əbˈstɹɛpəɹəs/ **IPA (UK):** /əbˈstɹɛp.əɹ.əs/ **Frequency rank:** 116009 ## Meanings 1. boisterously and noisily aggressive 2. noisily and stubbornly defiant ## Examples - Kept up an obstreperous clamor. - Obstreperous boys. ## Derived Forms - obstreperosity - obstreperously - obstreperousness - stroppy - unobstreperous ## Etymology Borrowed from Latin obstreperus, first attested circa 17th c. Compare obstropulous. ## Topics - Register & Style markdown