crackbrain

noun

crack·​brain ˈkrak-ˌbrān How to pronounce crackbrain (audio)
Synonyms of crackbrainnext
: an erratic person : crackpot
crackbrained
ˈkrak-ˈbrānd How to pronounce crackbrain (audio)
adjective

Synonyms

See all Synonyms & Antonyms in Thesaurus 

Examples of crackbrain in a Sentence

considered a crackbrain in his own time, the artist is now recognized as a genius a crackbrain who wore bedroom slippers to the grocery shop

Word History

First Known Use

circa 1570, in the meaning defined above

Time Traveler
The first known use of crackbrain was circa 1570

Dictionary Entries Near crackbrain

crackback

crackbrain

crackdown

See More Nearby Entries 

Cite this Entry

“Crackbrain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crackbrain. Accessed 4 Nov. 2024.

Copy Citation

Share

Kids Definition

crackbrain

noun
crack·​brain ˈkrak-ˌbrān How to pronounce crackbrain (audio)
: crackpot
crackbrained
-ˈbrānd How to pronounce crackbrain (audio)
adjective
Love words? Need even more definitions?

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

Popular in Grammar & Usage

See All

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Plural and Possessive Names: A Guide

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

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

Popular in Wordplay

See All

What does 'at large' mean?

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

10 Words from Taylor Swift Songs (Merriam's Version)
See All

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 Word Game 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?
Missing Letter A daily crossword with a twist
dog-hard-hat-hammer
Odd Jobs Quiz Work smarter, not harder, to figure out these occ...