不ふ注ちゅう意い

ふ

ちゅ

う

い

Common wordJLPTN1

Meanings

1

noun, na-adjective

Refers to a lack of attention or care, often resulting in mistakes or accidents. Can be used as a noun or adjectival noun (e.g., 不注意な, 不注意だ).

不ふ

注ちゅう

意い

な

ミス

を

減へ

らす

ため

に

、

チェックリスト

を

使つか

っ

て

いる

。

I use a checklist to reduce careless mistakes.

注ちゅう意い
注意 means 'attention' or 'caution'; 不注意 is its negation, meaning 'carelessness' or 'inattention'.
うっかり
うっかり is an adverb meaning 'carelessly' or 'absentmindedly', often used for momentary lapses, while 不注意 is a noun/adjective describing a general state of carelessness.

Compound of 不 (fu, 'not') + 注意 (chūi, 'attention, caution'). The meaning is transparently 'lack of attention'.