upheaval

noun

up·​heav·​al ˌəp-ˈhē-vəl 

(ˌ)ə-ˈpē-

1

: the action or an instance of upheaving especially of part of the earth's crust

2

: extreme agitation or disorder : radical change

a period of social upheaval

also : an instance of this

one of human history's greatest upheavals

Synonyms of upheaval

• unrest
• revolution
• earthquake
• turmoil
• revolt
• insurrection
• uprising
• storm
• tumult
• convulsion

Examples of upheaval in a Sentence

The civil rights movement marked a period of social upheaval in the U.S.

the emotional upheaval of divorce

a period of cultural and social upheavals

The island was created by an upheaval of the ocean floor.

The lake was formed by geologic upheaval.

Recent Examples on the Web

And whenever there is some upheaval in the world, or in our community, Leimert Park has always been this galvanizing place where everybody comes together to learn what’s going on, to find out what the solutions are and what the marching orders are. —Deborah Vankin, Los Angeles Times, 29 Apr. 2026

Danny DeVito, Will Sampson and Brad Dourif costar as fellow patients who are inspired by McMurphy to rise up against the conformity and cruelty of the institution, an obvious stand-in for the social upheaval of the time period. —David Faris, TheWeek, 29 Apr. 2026

While the timing is uncertain, failing to address those pressures increases the odds that adjustment comes after upheaval rather than deliberate policy moves. —Hugh Son, CNBC, 28 Apr. 2026

War, migration issues and climate upheaval dominated the news. —Kamala Thiagarajan, NPR, 26 Apr. 2026

Word History

First Known Use

1838, in the meaning defined at sense 1

Rhymes for upheaval

• coeval
• medieval
• primeval
• retrieval
• evil
• weevil

Kids Definition

upheaval

noun

up·​heav·​al ˌəp-ˈhē-vəl 

(ˌ)ə-ˈpē-

1

: the action or an instance of heaving or lifting up from beneath especially of part of the earth's crust

2

: an instance of violent disorder or change

emotional upheaval