upheaval

Upheaval means a violent or sudden change. You might talk about an upheaval in government following an election where many incumbents are replaced.

Upheaval is a geological term for the upward displacement of the earth's crust that has stretched to include a change in power or ideas. If you suddenly found out your favorite teacher was running a pyramid scheme and had escaped to a Caribbean island, you might experience an upheaval in your attitude toward teachers in general.

PRIMARY MEANINGS OF: upheaval

1
n
a violent disturbance
2
n
(geology) a rise of land to a higher elevation (as in the process of mountain building)
FULL DEFINITIONS OF: upheaval
1

n a violent disturbance

Synonyms:
convulsion, turmoil
Type of:
commotion, disruption, disturbance, flutter, hoo-ha, hoo-hah, hurly burly, kerfuffle, to-do
a disorderly outburst or tumult

n disturbance usually in protest

Synonyms:
agitation, excitement, hullabaloo, turmoil
Type of:
disturbance
the act of disturbing something or someone; setting something in motion

n a state of violent disturbance and disorder (as in politics or social conditions generally)

Synonyms:
Sturm und Drang, turbulence
Types:
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agitation, ferment, fermentation, tempestuousness, unrest
a state of agitation or turbulent change or development
roller coaster
anything characterized by abrupt and extreme changes (especially up and down)
violence
a turbulent state resulting in injuries and destruction etc.
rage
violent state of the elements
Type of:
disorder
a disturbance of the peace or of public order
2

n (geology) a rise of land to a higher elevation (as in the process of mountain building)

Synonyms:
uplift, upthrow, upthrust
Type of:
ascension, ascent, rise, rising
a movement upward
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