What does "come undone" mean?

To become unfastened; to fail or fall apart When things become untied or plans collapse.

How do you use "come undone" in a sentence?

My shoelace has come undone. The whole plan came undone. She came undone under pressure.

Phrasal Verb BritishAmericanAustralian ★★★★☆ Common Neutral

Meaning: To become unfastened; to fail or fall apart

松开；失败或瓦解

Desatarse; fracasar o desmoronarse

ほどける；失敗する、崩壊する

풀리다; 실패하다, 무너지다

When things become untied or plans collapse.

东西松开或计划崩溃。

Cuando algo se desata o los planes se desmoronan.

紐などがほどけること、または計画が失敗・崩壊すること。

매듭이 풀리거나 계획이 와해되는 것.

Base verb: come

Particle: undone

Separable: No — the verb and particle stay together

My shoelace has come undone.
我的鞋带松了
Se me ha desatado el cordón
靴紐がほどけた
신발 끈이 풀렸다
The whole plan came undone.
整个计划都崩溃了
Todo el plan se vino abajo
計画全体が崩壊した
계획 전체가 무너졌다
She came undone under pressure.
她在压力下崩溃了
Se derrumbó bajo la presión
彼女はプレッシャーで崩れてしまった
그녀는 압박감에 무너져 버렸다

Context: failure, unfastening

Tone: distressed

From becoming unfastened.

Era: Modern

Generation: All ages

Social background: Universal