upheaval

Compared meaning: a state of confusion and disorder (noun).

比较义项：混乱、动荡不安（名词）。

• turmoil

  Describes an ongoing state of confusion and disorder rather than a specific change; commonly follows 'in', as in 'in turmoil', for political, social or emotional situations.

  描述一种持续的混乱、无序状态，而非某个具体的变化；常与in连用，构成in turmoil，用于政治、社会或情绪方面的情况。

  The country was in turmoil after the sudden election results.

  选举结果突如其来，这个国家陷入了混乱。

• upheaval 本词

  Emphasizes a drastic, disruptive change that overturns the existing order, often at work, in society or in personal life; focuses on transformation, not just confusion.

  强调一种剧烈、具有破坏性的变化，会颠覆原有的秩序，常用于工作、社会或个人生活；侧重变革本身，而不仅仅是混乱。

  The sudden management upheaval completely changed how the department worked.

  公司管理层的突然动荡，彻底改变了这个部门的运作方式。

• convulsion

  Suggests a sudden, violent and often brief eruption of disorder, stronger than turmoil or upheaval; typically used in the plural for large-scale political or social unrest.

  指一种突然、猛烈且往往短暂的动乱爆发，程度比turmoil和upheaval更强；通常用复数形式，描述大规模的政治或社会动荡。

  A series of violent convulsions shook the government after the coup.

  政变之后，一连串猛烈的动乱震撼了政府。

Turmoil, upheaval, and convulsion all describe disorder, but differ in intensity: turmoil is an ongoing state of confusion, as in 'in turmoil'. Upheaval is a drastic change that overturns the existing order. Convulsion is the strongest, a sudden, violent eruption, often used in the plural.

这三个词都表示混乱、动荡的状态，但侧重点和强度不同：turmoil强调持续的混乱状态本身；upheaval强调颠覆原有秩序的剧烈变化；convulsion语气最强，指突然而猛烈的动乱爆发，且常用复数convulsions。convulsion在医学语境中还有“痉挛、抽搐”的意思，这里不作比较。