indolence

His failure to pass the bar exam was not due to a lack of intelligence, but rather his pure indolence.

(Chinese) 他没能通过司法考试不是因为不够聪明，而是因为纯粹的懒惰。

The extreme summer heat often results in a feeling of widespread indolence among the office staff.

(Chinese) 盛夏的极度炎热往往导致办公室员工普遍产生一种懒散的感觉。