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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.

See Examples For:

In May, the UK's terror threat was raised to "severe", meaning an attack is highly likely.

From BBC Aug. 21, 2026

At least hyperscalers have highly profitable business models and strong balance sheets; many of these new power providers don’t.

From The Wall Street Journal Aug. 20, 2026

Players are held to high standards as role models, and their off-field behaviour is as highly scrutinised as their on-field antics.

From Barron's Aug. 20, 2026

It’s still pastiche, but unbeholden to the nostalgia-obsessed, highly referential style that has plagued so much contemporary media, like “Stranger Things,” “Super 8” and “Wonder Woman 1984.”

From Salon Aug. 20, 2026

Once aboard, he secured a window seat so he could continue to wave many highly theatrical farewells to Penelope and the children.

From "The Unseen Guest" by Maryrose Wood

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