perfectly
Americanadverb
-
in a perfect manner or to a perfect degree.
to sing an aria perfectly.
- Synonyms:
- ideally, superbly, flawlessly
-
completely; fully; adequately.
This will suit my purpose perfectly.
He’s perfectly happy to help out.
She’s perfectly capable of making her own decision.
adverb
-
completely, utterly, or absolutely
-
in a perfect way; extremely well
Etymology
Origin of perfectly
First recorded in 1275–1325; perfect + -ly; replacing Middle English parfitly, derivative of parfit ( perfect )
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.
Earth's center of mass does not stay perfectly still.
From Science Daily ● Oct. 7, 2026
A mortgage on a house you can comfortably afford or buying that duplex I mentioned above to earn some rental income are perfectly fine examples of “good” debt.
From MarketWatch ● Oct. 7, 2026
“I segued into TV and am perfectly happy.”
From Los Angeles Times ● Oct. 6, 2026
Scott slipped seamlessly into England's midfield with powerful running, a complete range of passing and an energy to his link play that made the 23-year-old look perfectly at home at international level.
From BBC ● Oct. 6, 2026
“I’m sure it’s perfectly fine, my dear! Fresh as the day it came. Mr. Steerwijk’s cheese is always—”
From "The Hiding Place" by Corrie ten Boom
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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.