不 具 合(ふぐあい)

ふぐあい

noun, na-adjective

defect, malfunction

1. defect, malfunction, bug

A problem or flaw in a product, system, or process that prevents it from working correctly. Often used as a softer alternative to stronger words like 'failure' or 'defect' in customer-facing communications.

ソフトウェアに不具合(ふぐあい)が見(み)つかった。

A bug was found in the software.

製品(せいひん)の不具合(ふぐあい)でリコールになった。

There was a recall due to a product defect.

不具合(ふぐあい)を修正(しゅうせい)するアップデートを配信(はいしん)した。

We released an update to fix the bug.

何(なに)か不具合(ふぐあい)があればご連絡(れんらく)ください。

Please contact us if you experience any problems.

2. inconvenience, trouble

An undesirable situation or condition that causes problems or difficulties.

何(なに)か不具合(ふぐあい)があればご連絡(れんらく)ください。

Please contact us if you experience any problems.

体調(たいちょう)に不具合(ふぐあい)を感(かん)じたら医者(いしゃ)に行(い)ってください。

If you feel something is off with your health, please see a doctor.

工事(こうじ)の影響(えいきょう)で近隣(きんりん)に不具合(ふぐあい)が生(しょう)じた。

The construction caused problems for the neighborhood.

Composition: 不(ふ) (not, un-) + 具合(ぐあい) (condition, state). Literally "bad condition."

Common collocations

不具合(ふぐあい)が発生(はっせい)する (a malfunction occurs)
不具合(ふぐあい)が見(み)つかる (a defect is found)
不具合(ふぐあい)を修正(しゅうせい)する (to fix a bug)
不具合(ふぐあい)を報告(ほうこく)する (to report a problem)
不具合(ふぐあい)対応(たいおう) (defect handling)
システムの不具合(ふぐあい) (system malfunction)

Usage note: 不具合(ふぐあい) is often preferred in business and customer communication because it sounds less severe than 故障(こしょう) (breakdown), 欠陥(けっかん) (defect), or 不良(ふりょう) (defective). This is sometimes called euphemistic corporate language.

Related words

故障(こしょう) - breakdown, malfunction (more severe)
バグ - bug (in software)
欠陥(けっかん) - defect, flaw

Related Words

Synonym: 故障(こしょう) (more severe)

Related: バグ (bug)

Related: 欠陥(けっかん) (defect, flaw)

Compare: 故障(こしょう)する (breakdown, malfunction)

Compare: 誤作動(ごさどう) (malfunction)

Compare: リコール (recall (of a defective product))

general

Added 2026.1.17 22:22 · Revised 2026.9.2 12:02

06000/06413_fuguai