WordReference Random House Learner's Dictionary of American English © 2015
ob•strep•er•ous /əbˈstrɛpərəs/USA pronunciation adj. 
  1. resisting control or restraint;
    unruly:obstreperous demonstrators.
  2. noisy, clamorous, or boisterous:an obstreperous party.

Collins Concise English Dictionary © HarperCollins Publishers::

obstreperous /əbˈstrɛpərəs/ adj
  1. noisy or rough, esp in resisting restraint or control
Etymology: 16th Century: from Latin, from obstrepere, from ob- against + strepere to roar

obˈstreperously adv obˈstreperousness n

'obstreperous' also found in these entries:

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