1.
careless; thoughtless; unguarded
Lacking proper preparation, caution, or thought. Often refers to words or actions done without considering the consequences.
不用意な発言で相手を傷つけてしまった。
I hurt the other person with a careless remark.
不用意に個人情報を漏らさないでください。
Please don't carelessly reveal personal information.
不用意にドアを開けたら、猫が逃げた。
When I carelessly opened the door, the cat escaped.
FORMS:
- 不用意な + noun (careless ~)
- 不用意に + verb (carelessly ~)
WORD FORMATION:
不 (un-, non-) + 用意 (preparation)
Literally: "without preparation"
COMMON COLLOCATIONS:
- 不用意な発言 - careless remark
- 不用意な行動 - thoughtless action
- 不用意に口を滑らせる - to let something slip carelessly
SIMILAR WORDS:
- 軽率 - rash, thoughtless (more about being imprudent)
- 無防備 - defenseless, unguarded (more about vulnerability)
- うかつ - careless (more colloquial)
REGISTER:
Neutral to formal. Common in news, official statements, and formal writing.