The definition of lackadaisical is someone lacking spirit or interest.(adjective)
An example of someone who would be described as lackadaisical is a person who makes a disinterested and half-hearted attempt at his schoolwork.
See lackadaisical in Webster's New World College Dictionary
Origin: < lackadaisy, altered (infl. by daisy) < lackaday
See lackadaisical in American Heritage Dictionary 4
Origin: From lackadaisy
Origin: , alteration of lackaday.
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