na-adjective, noun
rash; thoughtless; careless; hasty; imprudent
Describes acting or speaking without sufficient thought, often leading to mistakes or regret. Antonym: 慎重 (careful, prudent).
Antonyms: 慎重
彼の軽率な発言が問題になった。
His thoughtless remark caused a problem.
軽率な行動は避けるべきだ。
You should avoid rash actions.