dotty
1 Americanadjective
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crazy or eccentric.
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feeble or unsteady in gait.
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very enthusiastic or infatuated (usually followed by about orover ).
adjective
adjective
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slang feeble-minded; slightly crazy
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slang (foll by about) extremely fond (of)
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marked with dots
Other Word Forms
Etymology
Origin of dotty1
1805–15; perhaps dott(ard) variant of dotard + -y 1
Origin of dotty2
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:
The dotty pumpkins and kaleidoscope rooms of Yayoi Kusama, who has died aged 97, were as vibrant as the artist herself, but her exuberant work was the expression of a long battle with mental illness.
From Barron's ● Aug. 27, 2026
But Hall and Faris, now playing the dotty mothers of the next generation of victims, are hilarious, romping about like their Brenda and Cindy have clearly been knocked on the head too often.
From Los Angeles Times ● Jun. 5, 2026
Lise has run-ins with other passengers aboard her flight and, once at her destination, befriends a bumbling, dotty widow.
From The Wall Street Journal ● Jan. 23, 2026
Then, in 2024, he had to have the dotty idea to throw himself into contention for the vice presidency.
From Slate ● Jan. 10, 2026
‘And you is dotty as a dogswoggler!’ cried the Bloodbottler.
From "The BFG" by Roald Dahl
He has, however, replaced it with one that is, if anything, even dottier.
From The Guardian ● Aug. 10, 2011
The whole idea – driven, apparently, by the need to get more southern bums on northern seats to fulfil contract pledges – couldn't be dottier.
From The Guardian ● Jul. 24, 2010
When Heartbreak House was presented last week under Welles's direction and with himself in the leading role of 88-year-old Captain Shotover, even the dottiest Mercury fan could not help having qualms.
From Time Magazine Archive
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
