איך אומרים באנגלית "מטלטל", כמו ב"חוויה מטלטלת"?

shaking

overwhelming

a shocking experience

a staggering event/experience
a life changing event/experience
an earth-shattering event/experience
a momentous event
a calamitous event
a catastrophic event
a stressful event
a traumatic experience
a harrowing experience
*********
יש גם ordeal