faultless

American  

[fawlt-lis] / ˈfɔlt lɪs /

adjective

1. without fault, flaw, or defect; perfect.

   Synonyms:

   irreproachable, exemplary, impeccable, flawless

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faultless British  

/ ˈfɔːltlɪs /

adjective

1. without fault; perfect or blameless

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Other Word Forms

• faultlessly adverb
• faultlessness noun

Etymology

Origin of faultless

First recorded in 1300–50, faultless is from the Middle English word fautles. See fault, -less

Explanation

Anything that's faultless doesn't have a single flaw — it's perfect. It's surprising to learn that an actor is Welsh when she can speak with a faultless American accent. Faultless things have no faults or imperfections, like a comedian's faultless imitation of the president, which sounds identical to the real person. You can also use this adjective to describe someone who's not at fault, or can't be blamed: "I know someone ate the brownies, but I wasn't home and I'm utterly faultless." The fault part of faultless has a Latin root meaning "deceive or disappoint."

Example Sentences

Once Egg is unmasked, we come to understand why he’s so drawn to this enormous man whose gentle spirit permeates Claffey’s faultless performance.

From Salon • Feb. 23, 2026

It was a far from faultless display from debutant Wu, who won his first ranking title at the International Championship in November.

From BBC • Jan. 16, 2026

Holloway’s character observations are faultless, but the resolution of the story isn’t fully satisfying.

From Los Angeles Times • Nov. 18, 2025

Dortmund were faultless from the spot with Fabio Silva, Niklas Suele, Carney Chukwuemeka and Felix Nmecha all converting, while Ritsu Doan and Fares Chaibi both missed penalties for the home side.

From Barron's • Oct. 28, 2025

She was no token; her record was faultless.

From "The Westing Game" by Ellen Raskin