Meaning of “lackadaisical” in the English Dictionary

"lackadaisical" in British English

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lackadaisicaladjective

uk /ˌlæk.əˈdeɪ.zɪ.kəl/ us /ˌlæk.əˈdeɪ.zɪ.kəl/ formal

(Definition of “lackadaisical” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"lackadaisical" in American English

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lackadaisicaladjective

us /ˌlæk·əˈdeɪ·zɪ·kəl/

lacking enthusiasm and effort:

The food wasn’t bad but the service was lackadaisical.

(Definition of “lackadaisical” from the Cambridge Academic Content Dictionary © Cambridge University Press)