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

Derived 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

"His final three dishes showed that - they were faultless," she said.

From BBC • Mar. 26, 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

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

In the ring, his attention to detail and faultless technique enabled him to post a 49-5-1 record.

From Los Angeles Times • Jun. 2, 2025

She was no token; her record was faultless.

From "The Westing Game" by Ellen Raskin