brainlessness

noun

1
as in insanity
lack of good sense or judgment had the inexplicable brainlessness to sell his car for half of what it was worth

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms
2
as in stupidness
the quality or state of lacking intelligence or quickness of mind the turkey is one bird that has often been cited for its brainlessness

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for brainlessness
  1. insanity
  2. stupidness
  3. madness
  4. mindlessness
  5. simplicity
  6. thickness
  7. absurdity
  8. stupidity
Noun
  • Clancy was tried in a Massachusetts court of law, one of the few venues where defendants such as Clancy enjoy the presumption of proof for pleas of insanity, once they are allowed to make such a plea.
    — Richard E. Vatz, Baltimore Sun, 6 Sep. 2026
  • Judge Andy Porter found Tracy Walters not guilty by reason of insanity in the December 2021 killing of Cynthia Cervantes, a social worker and Navy veteran.
    — Emerson Clarridge, Fort Worth Star-Telegram, 4 Sep. 2026
Definition of insanity
Noun
  • In an email to Krebs, Valadon claimed that the repo’s commit logs show that GitHub’s default protections against committing secrets—protections designed to protect unwitting or unskilled developers against exactly this kind of stupidness—had been disabled by the repo’s administrator.
    — Lee Hutchinson, ArsTechnica, 19 May 2026
Definition of stupidness
Noun
  • Just 42 minutes of 10-run madness … all after this game should have been over.
    — Jayson Stark, New York Times, 4 Sep. 2026
  • While operating, Joseph shakes off the space madness by recalling La’an’s advice.
    — Keith Phipps, Vulture, 3 Sep. 2026
Definition of madness
Noun
  • There’s the White House and its malicious megaphone of mindlessness; the generative AI advocates and their pushy, pathetic ploys; the Major League Baseball owners and their dedication to self-destruction.
    — Ben Travers, IndieWire, 20 Feb. 2026
  • The show’s real villain is mindlessness, in other words.
    — Shirley Li, The Atlantic, 5 Feb. 2026
Definition of mindlessness
Noun
  • The key is simplicity and predictability, giving producers confidence that American locations can compete with foreign alternatives.
    — Sam Roseme, HollywoodReporter, 5 Sep. 2026
  • Complexity can disguise poor thinking, while simplicity can expose it.
    — Ricardo Bellino, Forbes.com, 4 Sep. 2026
Definition of simplicity
Noun
  • Of course, some of the reasons guests struggle to sleep while traveling have nothing to do with the thickness of the walls or noise from the hallway.
    — Jeanne Bonner, CNN Money, 3 Sep. 2026
  • We are desired and judged, we are measured by the thickness of our thighs, size of our chests, sparkle in our grin.
    — Marissa R. Moss, Rolling Stone, 2 Sep. 2026
Definition of thickness
Noun
  • Coworkers spin up absurd theories about each other, and this setting—the office as the most fertile breeding ground for speculation—allows Park’s absurdities to bend plausibility without breaking it.
    — James Folta, Literary Hub, 10 Sep. 2026
  • Georgian life in that period was extremely difficult, but there was also a kind of absurdity to it, even a charm.
    — JD Linville, Variety, 8 Sep. 2026
Definition of absurdity
Noun
  • The latest contestant in this recurring game of fiscal stupidity is Miami.
    — Mike Bianchi, The Orlando Sentinel, 6 Aug. 2026
  • That’s only made worse by the fact that it’s treated as some kind of grand betrayal rather than an impulsive act of youthful stupidity that will make for a good story one day.
    — David Ehrlich, IndieWire, 29 July 2026
Definition of stupidity
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

brainless
brainlessness
brainpower
See all Nearby Words

Cite this Entry

“Brainlessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/brainlessness. Accessed 13 Sep. 2026.

Copy Citation
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of shofar

See Definitions and Examples »

Popular in Grammar & Usage

See More

Merriam-Webster’s Great Big List of Words You Love to Hate

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

Words from the 'Odyssey'

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of
See More

Popular

See More

Merriam-Webster’s Great Big List of Words You Love to Hate

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
funny guinea pig in glasses reading a book
Challenging Words You Should Know Vol 2 Words to the wise
See All