lackadaisical

懒散的

Merriam-Webster's Word of the Day

2026-08-17

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Merriam-Webster's Word of the Day for August 17, 2026 is: lackadaisical • lak-uh-DAY-zih-kul  • adjective Something or someone described as lackadaisical is lacking in interest, enthusiasm, or zest. // Feeling particularly lackadaisical in the summer heat, they lazily tossed a ball back and forth. See the entry > Examples: "The defense was lackadaisical at best, while the offense wasn't much better." — Shreyas Laddha, The Daily Gazette (Schenectady, New York), 7 Feb. 2026 Did you know? We're too enthusiastic about the lexicon to be lackadaisical about words, but lackadaisical itself is rooted in the sort of sorrow that can put a damper on one's passion for vocabulary expansion. When folks living from the late 17th to the late 19th century had one of those days when nothing goes right, they could cry "Lackaday!" to express their sorrow and disappointment as a shortened form of the expression "alack the day." (Alack is an interjection used to express sorrow or regret.) By the mid-1700s, the adjective lackadaisical had been formed to describe such weary and exasperated folks, as well as their half-hearted doings and sayings. Today the word has lost some of its dreariness and most often describes the languid and lazy.
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  • It's the word of the day for August 17th.

  • Today's word is lackadaisical, spelled L-A-C-K-A-D-A-I-S-I-C-A-L.

  • Lackadaisical is an adjective.

  • Someone or something described as lackadaisical is lacking in interest, enthusiasm, or zest.

  • Here's the word used in a sentence from the Daily Gazette of Schenectady.

  • The defense was lackadaisical at best, while the offense wasn't much better.

  • We're too enthusiastic about the lexicon to be lackadaisical about words,

  • but the word lackadaisical itself is rooted in the sort of sorrow

  • that can put a damper on one's passion for vocabulary expansion.

  • When folks living from the late 17th to the late 19th century had one of those days when nothing goes right,

  • they would cry lackaday to express their sorrow and disappointment as a shortened form of the expression a lack the day.

  • A lack is an interjection used to express sorrow or regret.

  • By the mid-1700s, the adjective lackadaisical had been formed to describe such weary and exasperated folks,

  • as well as their half-hearted doings and sayings.

  • Today, the word has lost some of its dreariness and most often describes the languid and the lazy.

  • With your Word of the Day, I'm Peter Sokolowski.

  • Visit merriamwebster.com today for definitions, wordplay, and trending word lookups.