a system or mode of action in which the strongest survive, presumably as animals in nature or as human beings whose activity is not regulated by the laws or ethics of civilization.
Origin of law of the jungle
First recorded in 1890–95
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for law of the jungle
a state of ruthless competition or self-interest
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Idioms and Phrases with law of the jungle
Survival of the strongest, as in The recent price war among airlines was governed by the law of the jungle. This term, alluding to the jungle as a place devoid of ethics where brutality and self-interest reign, was first used by Rudyard Kipling in The Jungle Book (1894).
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.