groupthink

[ groop-thingk ]
/ ˈgrupˌθɪŋk /

noun

the practice of approaching problems or issues as matters that are best dealt with by consensus of a group rather than by individuals acting independently; conformity.
the lack of individual creativity, or of a sense of personal responsibility, that is sometimes characteristic of group interaction.

Origin of groupthink

1950–55; group + think1, on the model of doublethink
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for groupthink

groupthink

/ (ˈɡruːpˌθɪŋk) /

noun

a tendency within organizations or society to promote or establish the view of the predominant group
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