upheaval
名词 upheaval:
a state of violent disturbance and disorder (as in politics or social conditions generally)
同义词:turbulence, Sturm und Drang
a violent disturbance
同义词:convulsion, turmoil
(geology) a rise of land to a higher elevation (as in the process of mountain building)
disturbance usually in protest
同义词:agitation, excitement, turmoil, hullabaloo