Extremely
Highly
Highly adverb - To a great degree.
Usage example: though she didn't win, she was highly satisfied with her personal results for the marathon
Extremely is a synonym for highly in very topic. You can use "Extremely" instead an adverb "Highly", if it concerns topics such as really, big, quite, particularly. popular alternative
Nearby Word: high
Mutual synonyms
Related pairs
Both words in one sentence
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The Graysons aren't really strawman types: they're very highly conservative, but it's a fairly natural development of their history and the extremely harsh conditions they live under.
Source: Straw Character -
While this isn't entirely impossible, it would be extremely difficult as a soldier's weapon is very closely tracked, and would also be highly illegal.
Source: Series / Justified -
They are extremely powerful magic users and are very highly regarded by other people, and their alicorn is highly valued for its various magical uses.
Source: Literature / Cerberon
Cite this Source
Highly and Extremely. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/extremely/highly
Extremely & Highly. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/extremely/highly>.
Highly or Extremely. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/extremely/highly.
Google Ngram Viewer shows how "extremely" and "highly" have occurred on timeline