as in flibbertigibbets
a silly flighty person
in a medical situation of this seriousness we don't need some rattlebrain running around in a panic
Synonyms & Similar Words
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Example Sentences
Recent Examples of Synonyms for rattlebrains
Noun
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The men largely act like fools in Splitsville.—
Nigel Smith,
People.com,
22 Aug. 2025 -
Witty, observant, and unwilling to suffer fools, Elizabeth Bennet is the original challenger brand.—
Ann Kowal Smith,
Forbes.com,
13 Aug. 2025
Noun
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And when the fire happened, the geese still needed their mother very much.—
Mike Fleming Jr,
Deadline,
31 Aug. 2025
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The sitter was responsible for watering the garden and houseplants, feeding and caring for three cats, a Labrador named Trip, and a flock of chickens, geese, and 11 baby chicks.—
Lydia Patrick,
MSNBC Newsweek,
30 Aug. 2025
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“Rattlebrains.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/rattlebrains. Accessed 9 Sep. 2025.
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