Added 9 October 2026
lackadaisical
/ˌlækəˈdeɪzɪkəl/ adjective
adjective Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about lackadaisical at Wordnik → Where our words come from →
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Lacking spirit or liveliness.
a lackadaisical attempt
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Idle or indolent especially in a dreamy way.
she was annoyingly lackadaisical and impractical
Origin
From the archaic expression lackadaisy + -ic + -al.
From Wiktionary, via Kaikki.org (CC BY-SA)