flaw /flɔ/  noun

1 . a small physical problem, such as a crack, that makes something less valuable : defect

  • There was a flaw in the vase.
  • He inspected the fabric for flaws.

2 . a small fault or weakness

  • Several critics pointed out the flaws in the book’s plot.
  • Vanity was the one flaw in his character.
  • There are a few flaws in your argument.

— flawless /ˈflɔlɪs/   adjective

  • an attractive woman with flawless skin
  • flawless performance

— flawlessly adverb

  • She performed flawlessly.