Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

rattlebrain

play
noun rat·tle·brain \ˈra-təl-ˌbrān\

Definition of rattlebrain

  1. :  a flighty or thoughtless person

rat·tle·brained play \-ˌbrānd\ adjective


Examples of rattlebrain

  1. <in a medical situation of this seriousness we don't need some rattlebrain running around in a panic>



1709

First Known Use of rattlebrain

1709


Learn More about rattlebrain


Seen and Heard

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

WORD OF THE DAY

February 5, 2016

bread traditionally eaten on Shabbat

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders pince-nez duvet spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ