[ˌlakəˈdeɪzɪkl], (Adjective)

Definitions:
- lacking enthusiasm and determination; carelessly lazy
(e.g: taking a lackadaisical approach can jeopardize the success of a project)


Phrases:

Origin:
mid 18th century (also in the sense ‘feebly sentimental’): from lackaday or its obsolete extended form lackadaisy