lackadaisy

his lackadaisical attitude toward work frustrated his colleagues.

the lackadaisical approach to the project led to its failure.

she displayed a lackadaisical manner during the important meeting.

we cannot tolerate such lackadaisical behavior in the workplace.

his lackadaisical effort was evident in the poor quality of his work.

the lackadaisical service at the restaurant disappointed the customers.

her lackadaisical response showed she wasn't taking the matter seriously.

the team's lackadaisical play resulted in another loss this season.

a lackadaisical attitude won't help you succeed in this competitive industry.

the teacher criticized the student's lackadaisical approach to studying.

after vacation, he returned to work with a lackadaisical demeanor.