strong or violent change or disturbance, as in a society

the upheaval of war.

an act of upheaving, esp. of a part of the earth's crust.

the state of being upheaved.

Geology . an upward warping of a part of the earth's crust, forcing certain areas into a relatively higher position than before.

noun

stagnation

noun

about-face * , alteration , cataclysm , catastrophe , clamor , commotion , convulsion , disaster , disorder , disruption , disturbance , eruption , explosion , ferment , flip-flop * , new ball-game , new deal , outbreak , outburst , outcry , overthrow , revolution , shakeout , stirring , switch , temblor , tremor , tumult , turmoil , turnaround , upturn , agitation , change , chaos , labefaction , orogeny , revolt , storm