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no-brainer

American  
[noh-brey-ner] / ˈnoʊˈbreɪ nər /

noun

  1. Informal. anything requiring little thought or effort; something easy or simple to understand or do.

no-brainer British  
/ ˌnəʊˈbreɪnə /

noun

  1. slang something which requires little or no mental effort

"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
no-brainer Cultural  

  1. Something that is absurdly simple or easy and requires little thought: “Making pumpkin pie can be a no-brainer if you use frozen pastry and canned filling.”

Etymology

Origin of no-brainer

First recorded in 1975–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

She says they are a very "outdoorsy and creative family" and so restricting screen time was a "no-brainer".

From BBC

"Putting in bans and height barriers would have cost the council revenue, cost them enforcement, and lost all the businesses the money so it's a no-brainer as far as we understand," Steve said.

From BBC

For some parents who have already struggled with it, banning the platforms for children is a no-brainer.

From BBC

In Saudi's eyes, Salah is a huge asset as the number one Muslim footballer in the world and, in that sense, it is a no-brainer.

From BBC

A war that threatens to stoke inflation sounds like a no-brainer for gold.

From The Wall Street Journal

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.