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obstreperous

[uh b-strep-er-uh s] /əbˈstrɛp ər əs/
adjective
1.
resisting control or restraint in a difficult manner; unruly.
2.
noisy, clamorous, or boisterous:
obstreperous children.
Origin
1590-1600
1590-1600; < Latin obstreperus clamorous, akin to obstrepere to make a noise at (ob- ob- + strepere to rattle); see -ous
Related forms
obstreperously, adverb
obstreperousness, obstreperosity
[uh b-strep-uh-ros-i-tee] /əbˌstrɛp əˈrɒs ɪ ti/ (Show IPA),
noun
Synonyms
1. uncontrolled, refractory.
Antonyms
1. obedient. 2. calm.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for obstreperousness

obstreperous

/əbˈstrɛpərəs/
adjective
1.
noisy or rough, esp in resisting restraint or control
Derived Forms
obstreperously, adverb
obstreperousness, noun
Word Origin
C16: from Latin, from obstrepere, from ob- against + strepere to roar
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for obstreperousness

obstreperous

adj.

c.1600, from Latin obstreperus "clamorous," from obstrepere "drown with noise, make a noise against, oppose noisily," from ob "against" (see ob-) + strepere "make a noise," from PIE *strep-, said to be imitative (cf. Latin stertare "to snore," Old Norse þrapt "chattering," Old English þræft "quarrel"). Related: Obstreperously; obstreperousness.

Online Etymology Dictionary, © 2010 Douglas Harper
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