IPA: /əˈmeɪzɪŋli/
KK: /əˈmeɪzɪŋli/
In a way that causes surprise or admiration; remarkably.
She performed amazingly well in the competition, impressing everyone with her skills.
Amazingly → It is formed from "amaze" (from Old French *esmaier*, meaning to stun or bewilder) and the suffix "-ingly" (meaning in a manner of). The word "amazingly" means in a manner that stuns or bewilders.
Think of being 'stunned' or 'bewildered' when something is 'amazing' — the '-ingly' just means in that manner.