Murphy's Law

noun

: an observation: anything that can go wrong will go wrong

Word History

Etymology

probably from Edward A. Murphy †1990 American engineer

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of Murphy's Law was in 1951

Dictionary Entries Near Murphy's Law

Cite this Entry

“Murphy's Law.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Murphy%27s%20Law. Accessed 20 Apr. 2024.

Kids Definition

Murphy's Law

noun
Mur·​phy's Law
ˈmər-fēz-
: an observation that anything that can go wrong will go wrong
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!