脆弱(ぜいじゃく)

ぜいじゃく
noun, na-adjective
vulnerability; fragility; weakness
formaltechnicalbusinesstechnologyevaluation
1. fragility; weakness; vulnerability
The state of being easily damaged, broken, or attacked. Used for physical structures, systems, or situations.
脆弱(ぜいじゃく)な地盤(じばん)の上(うえ)に建(た)てられた。
It was built on fragile ground.
経済(けいざい)の脆弱性(ぜいじゃくせい)が露呈(ろてい)した。
The fragility of the economy was exposed.
精神的(せいしんてき)に脆弱(ぜいじゃく)な状態(じょうたい)では、大(おお)きな決断(けつだん)を避(さ)けたほうがいい。
When you're in a mentally fragile state, it's better to avoid major decisions.
2. security vulnerability
In IT context, a weakness in a system that can be exploited by attackers.
セキュリティの脆弱性(ぜいじゃくせい)が発見(はっけん)された。
A security vulnerability was discovered.
脆弱性(ぜいじゃくせい)を修正(しゅうせい)するパッチが公開(こうかい)された。
A patch to fix the vulnerability was released.
ゼロデイ脆弱性(ぜいじゃくせい)を突(つ)いた攻撃(こうげき)が確認(かくにん)された。
An attack exploiting a zero-day vulnerability was confirmed.

Etymology

脆(ぜい) (brittle, fragile) + 弱(じゃく) (weak)

Forms

COMMON COLLOCATIONS (IT security):

COMMON COLLOCATIONS (general):

Related words

Related Words

Antonym: 堅牢(けんろう) (robust, solid)
Compare: 壊(こわ)れやすい (fragile)
Compare: 最弱(さいじゃく) (weakest)
Compare: 無防備(むぼうび)な (defenseless)
general
Added 2026.1.20 17:21 · Revised 2026.10.12 4:28
07500/07523_zeijaku