IPA: /ædˈvɜːrsɪti/
KK: /ædˈvɜrsɪti/
A situation or event that causes difficulty, hardship, or misfortune.
She showed great strength in overcoming adversity during her life.
Adversity is formed from "ad-" (meaning to or toward) and "vertere" (meaning to turn). The word describes a situation that turns against someone, leading to hardship or difficulty.
Think of a situation that turns 'toward' ('ad-') challenges or difficulties — that's what adversity means.