WordReference Random House Learner's Dictionary of American English © 2016
ob•strep•er•ous /əbˈstrɛpərəs/USA pronunciation   adj. 
  1. resisting control or restraint;
    unruly:obstreperous demonstrators.
  2. noisy, clamorous, or boisterous:an obstreperous party.

WordReference Random House Unabridged Dictionary of American English © 2016
ob•strep•er•ous  (əb strepər əs), 
  1. resisting control or restraint in a difficult manner; unruly.
  2. noisy, clamorous, or boisterous:obstreperous children.
  • Latin obstreperus clamorous, akin to obstrepere to make a noise at (ob- ob- + strepere to rattle); see -ous
  • 1590–1600
ob•streper•ous•ly, adv. 
ob•streper•ous•ness, ob•strep•e•ros•i•ty  (əb strep′ə rosi tē), 
1 . uncontrolled, refractory. 1 . obedient. 2 . calm.

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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