Dictionary.com
Thesaurus.com
Showing results for harebrained. Search instead for Marks+Obtained.
Synonyms

harebrained

American  
[hair-breynd] / ˈhɛərˌbreɪnd /
Or hairbrained

adjective

  1. giddy; reckless.

    Synonyms:
    dimwitted, half-baked, scatterbrained, rattlebrained

harebrained British  
/ ˈhɛəˌbreɪnd /

adjective

  1. rash, foolish, or badly thought out

    harebrained schemes

"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

Other Word Forms

Etymology

Origin of harebrained

First recorded in 1545–55; hare + brained

Explanation

Something that's harebrained is reckless or foolish. Sometimes, harebrained ideas work out just fine — several people have survived trips over Niagara Falls in a barrel, for example. If you have what you think is a great idea, but someone else calls it a harebrained scheme, it means they think you'd be a fool to try it. For example, your harebrained plan to ride your bike on the highway is bound to get you in trouble. The 16th century harebrained came from the earlier harebrain, "giddy or reckless person," from the common impression of a rabbit or a hare as being nervous and skittish.

Keep Reading on Vocabulary.com

Vocabulary lists containing harebrained

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.

See Examples For:

Allen probably has more in common with Ryan Routh, who famously infiltrated Trump International Golf Course in a harebrained scheme to take down the then–Republican presidential nominee.

From Slate May 1, 2026

The worst that could happen is people like Musk have less money to invest in harebrained schemes like "ChatGPT, but more racist."

From Salon Jul. 17, 2023

I don’t take that lightly, because I’ve worked with other producers — good producers — but they were less enthusiastic about embracing harebrained ideas.

From Los Angeles Times Jun. 6, 2023

A harebrained lateral returned for a walk-off touchdown?

From Washington Post Dec. 19, 2022

Hagrid had some harebrained scheme in hand, which might make him miss Sirius.

From "Harry Potter And The Goblet Of Fire" by J. K. Rowling

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training