[ lak-uh-dey-zi-kuhl ]
/ ˌlæk əˈdeɪ zɪ kəl /


without interest, vigor, or determination; listless; lethargic: a lackadaisical attempt.
lazy; indolent: a lackadaisical fellow.

Words nearby lackadaisical

Origin of lackadaisical

1760–70; lackadais(y) (variant of lackaday) + -ical

OTHER WORDS FROM lackadaisical

lack·a·dai·si·cal·ly, adverblack·a·dai·si·cal·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for lackadaisical

British Dictionary definitions for lackadaisical

/ (ˌlækəˈdeɪzɪkəl) /


lacking vitality and purpose
lazy or idle, esp in a dreamy way

Derived forms of lackadaisical

lackadaisically, adverblackadaisicalness, noun

Word Origin for lackadaisical

C18: from earlier lackadaisy, extended form of lackaday
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012