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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.

With Centre Court still reeling from Gauff's scarcely believable miss, the tables turned quickly and Muchova brought up her first match point with a perfectly placed lob that left Gauff stranded at the net.

From BBC • Jul. 9, 2026

"We tested several ideas, including purely Newtonian effects and precession driven by the magnetar's magnetic fields, but only Lense-Thirring precession matched the timing perfectly," Farah said.

From Science Daily • Jul. 6, 2026

A business that lines up perfectly with your values today can change leadership, change policy or be acquired tomorrow, and the fund that excluded it now owns it, or the reverse.

From MarketWatch • Jul. 6, 2026

Even if those estimates prove high, the underlying risk remains remarkably underinsured because the service has been free, invisible and almost perfectly reliable for three decades.

From The Wall Street Journal • Jul. 5, 2026

My leg was perfectly intact back in the simulation room.

From "Glitch" by Laura Martin

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