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self-executing

American  
[self-ek-si-kyoo-ting, self-] / ˌsɛlfˈɛk sɪˌkyu tɪŋ, ˈsɛlf- /

adjective

  1. going into effect immediately without the need of supplementary legislation.

    a self-executing treaty.
self-executing British  

adjective

  1. (of a law, treaty, or clause in a deed or contract, etc) coming into effect automatically at a specified time, no legislation or other action being needed for enforcement

"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

Etymology

Origin of self-executing

First recorded in 1865–70

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.