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nonintervention

[non-in-ter-ven-shuh n]
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noun
  1. abstention by a nation from interference in the affairs of other nations or in those of its own political subdivisions.
  2. failure or refusal to intervene.

Origin of nonintervention

First recorded in 1820–30; non- + intervention
Related formsnon·in·ter·ven·tion·al, adjectivenon·in·ter·ven·tion·al·ist, nounnon·in·ter·ven·tion·ism, nounnon·in·ter·ven·tion·ist, noun, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for non-interventionism

nonintervention

noun
  1. refusal to intervene, esp the abstention by a state from intervening in the affairs of other states or in its own internal disputes
Derived Formsnoninterventional, adjectivenoninterventionist, noun, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012