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Synonyms

highly

American  
[hahy-lee] / ˈhaɪ li /

adverb

  1. in or to a high degree; extremely.

    highly amusing; highly seasoned food.

  2. with high appreciation or praise; admiringly.

    to speak highly of a person.

  3. more than adequately; generously.

    a highly paid consultant.


highly British  
/ ˈhaɪlɪ /

adverb

  1. (intensifier)

    highly pleased

    highly disappointed

  2. with great approbation or favour

    we spoke highly of it

  3. in a high position

    placed highly in class

  4. at or for a high price or cost

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of highly

First recorded before 900; Middle English heihliche, Old English hēalīce; equivalent to high + -ly

Explanation

Highly means to a high degree, extremely. A highly dangerous substance is one to stay far away from. If you think very highly of yourself, you give yourself the thumbs up every time you walk by a mirror. Highly comes from the Old English word healice for basically, "honorably," but has also come to mean “very very.” A highly respected writer is one people look up to. A highly regarded politician will probably win an election. Highly also refers to anything that is intense or extreme. A highly flammable chemical can burst into flames easily. The -ly ending is highly common for an adverb.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Officials at the Federal Reserve are highly sensitive to consumers’ long-run inflation expectations.

From The Wall Street Journal • May 22, 2026

Salam's vivid and inventive style makes it a highly enjoyable ride.

From BBC • May 22, 2026

Buying sprees of outlets led to owners who became highly leveraged and less able to invest in programming, which put the squeeze on suppliers such as CBS News Radio.

From Los Angeles Times • May 22, 2026

Facebook, now Meta Platforms, still holds the record for being the most highly valued U.S. company at the time of its IPO, with a market cap of $81 billion in May 2012.

From Barron's • May 22, 2026

It was housed in a highly secure but otherwise unmarked and unremarkable building in the Montmartre neighborhood of the city.

From "City Spies" by James Ponti

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