highly
Americanadverb
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in or to a high degree; extremely.
highly amusing; highly seasoned food.
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with high appreciation or praise; admiringly.
to speak highly of a person.
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more than adequately; generously.
a highly paid consultant.
adverb
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(intensifier)
highly pleased
highly disappointed
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with great approbation or favour
we spoke highly of it
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in a high position
placed highly in class
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at or for a high price or cost
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.
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.
"That is just what the doctor ordered. Highly competitive and he lifted his game," three-time Wimbledon singles champion John McEnroe said on BBC TV.
From BBC • Jul. 1, 2026
"Highly selective membranes such as these can lower energy use while maintaining the stringent standards required in pharmaceutical production."
From Science Daily • Jun. 12, 2026
Highly contagious, measles spreads quickly through coughs and sneezes and is particularly dangerous for unvaccinated young children under the age of 5.
From BBC • May 27, 2026
Highly regarded as an investor, Combs, a boyish-looking 55, helped return Geico, which was burdened with outdated technology and bloated costs, to profitability.
From Barron's • Mar. 27, 2026
Highly unlikely, I realize, but perhaps worth a shot.
From "I Am the Messenger" by Markus Zusak
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
