adjective
-
lacking vitality and purpose
-
lazy or idle, esp in a dreamy way
Other Word Forms
Etymology
Origin of lackadaisical
First recorded in 1760–70; lackadais(y) (variant of lackaday ) + -ical
Explanation
Even though lackadaisical sounds like it has something to do with a shortage of daisies, know that what it really means is lacking in spirit or liveliness. A person with a lackadaisical attitude shows no enthusiasm and puts forth a half-hearted effort. But it's more of a dreamy, laid back approach rather than sheer laziness. This funny-sounding adjective came about in the 18th century from the interjection lackaday, which was an old-fashioned way of saying "oh man!" or "unfortunately."
Vocabulary lists containing lackadaisical
The Lazy, Hazy Days of Summer
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100 SAT Words Beginning with "J," "K," and "L"
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Languor Management: Synonyms for "Lazy"
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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.
He himself gave lackadaisical remarks on the convention’s first night—alongside everything else, Paxton is also an unenthusiastic public speaker—to an indifferent crowd.
From Slate ● Sep. 21, 2026
Eleven months of the year, I’m a lackadaisical baker, dabbling in one-bowl cakes and easy-like-Sunday-morning muffins.
From The Wall Street Journal ● Dec. 5, 2025
The Lakers weren’t punished for their lackadaisical play during their seven-game winning streak against teams with losing records.
From Los Angeles Times ● Dec. 3, 2025
She said: "I'm beyond fed up with this lackadaisical approach to gender care. They are failing children and young people."
From BBC ● Apr. 23, 2024
But it was summertime, so in a drowsy, lackadaisical frame of mind, Duane followed the shoreline of the Cold, Cold Ocean, paying no attention to anything other than the sound of the gentle lapping water.
From "The Very, Very Far North" by Dan Bar-el
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
