大大咧咧 (dà da liē liē): Careless and casual in manner / brash (Adjective) — Meaning & Stroke Order

He is careless and casual, often leaving his keys on the desk.

He handled the customer complaint in a careless and casual manner, which ended up causing a bigger dispute.

Don't you think his careless and casual attitude will delay the work?

She is not always careless and casual; on the contrary, she is extremely meticulous in artistic creation.

He carelessly agreed to all the requests without considering their practical feasibility at all.