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. adverb
    to an extreme degree
    extremely cold”
    extremely unpleasant”
    synonyms: exceedingly, passing, super
  2. adverb
    to a high degree or extent; favorably or with much respect
    extremely interesting”
    synonyms: highly
Word Family

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week