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Synonyms

perfectly

American  
[pur-fikt-lee] / ˈpɜr fɪkt li /

adverb

  1. in a perfect manner or to a perfect degree.

    to sing an aria perfectly.

    Synonyms:
    ideally, superbly, flawlessly
  2. 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.


perfectly British  
/ ˈpɜːfɪktlɪ /

adverb

  1. completely, utterly, or absolutely

  2. in a perfect way; extremely well

"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 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.

Perfectly understandably, only those inside Anfield will feel and know its full impact.

From BBC • May 25, 2026

"You can see how many fallen leaves there are... Perfectly healthy leaves that could have kept feeding the plant and functioning for months are falling down," he said.

From Barron's • Feb. 12, 2026

Perfectly timed fossils from Morocco reveal a forgotten African population living near the very root of the human family tree.

From Science Daily • Feb. 7, 2026

Perfectly sticky, sweet-savory, and exactly what I wanted after a long travel day—they were a surprisingly delightful introduction to the Loews Atlanta Hotel.

From Salon • May 28, 2025

“It will be my pleasure, Father,” the young man replied lazily, “but why not just send Noah? He’s able-bodied. Perfectly good waste of a strong worker, seems to me.”

From "Copper Sun" by Sharon M. Draper

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