Thesaurus

crackbrained

adjective

Synonyms & Antonyms of crackbrained

having or showing a very abnormal or sick state of mind
  • had the crackbrained idea that he was receiving radio signals from outer space

Synonyms for crackbrained

Words Related to crackbrained

Phrases Synonymous with crackbrained

Near Antonyms for crackbrained

Antonyms for crackbrained

See the Dictionary Definition 

Keep scrolling for more

Learn More about crackbrained

Cite this Entry

“Crackbrained.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/crackbrained. Accessed 30 Nov. 2020.

Comments on crackbrained

What made you want to look up crackbrained? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

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