extremely

Extremely is a word that emphasizes the intensity of whatever it is you're talking about. If you say you're extremely angry, that word alone tells me I better not mess with you.

Extremely comes from the word extreme, which means great, severe, or exceptional. If you climb to extreme heights on a mountain, you've climbed extremely high. Use extremely to let people know that what you're talking about exceeds or goes beyond the norm. A joke that's not just funny, but extremely funny, is one that might have you gasping to catch your breath from laughing so hard.

Definitions of extremely
1

adv to an extreme degree

extremely cold”
extremely unpleasant”
Synonyms:
exceedingly, passing, super

adv to a high degree or extent; favorably or with much respect

extremely interesting”
Synonyms:
highly