extremely

adverb

ex·​treme·​ly ik-ˈstrēm-lē 

1

: in an extreme manner

2

: to an extreme extent

Synonyms of extremely

• very
• incredibly
• terribly
• highly
• too
• so
• badly
• damned
• severely
• damn
• really
• super
• desperately
• intensely
• seriously
• far
• exceptionally

Examples of extremely in a Sentence

an extremely hot day

Recent Examples on the Web

The outbreak is spreading under extremely difficult conditions, fueled by insecurity, displacement, a health workers' strike and intense population movements. — Arkansas Online, 20 Sep. 2026

The core message of the album seems to be that things are going pretty well — make that extremely well — with fiancée Maxx Morando, who is a writer-producer collaborator on all but two of the tracks. — Chris Willman, Variety, 19 Sep. 2026

The boy was taken in extremely critical condition to Jackson Memorial Hospital’s Ryder Trauma Center. — Devoun Cetoute, Miami Herald, 19 Sep. 2026

That distinction matters because quantum communication demands extremely high efficiency. — Aamir Khollam, Interesting Engineering, 18 Sep. 2026

Word History

First Known Use

1509, in the meaning defined at sense 1

Phrases Containing extremely

• extremely high frequency
• extremely low frequency

Rhymes for extremely

• seemly
• unseemly