flawless

[flaw-lis]

adjective

having no defects or faults, especially none that diminish the value of something: a flawless Ming Dynasty vase.
legally sound: The prosecution had a flawless case.
having no discernible blemishes or shortcomings; perfect: flawless French; flawless beauty.

Origin of flawless

Related formsflaw·less·ly, adverbflaw·less·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

The supreme confidence of this woman and the flawlessness of her schemes dazed him.
The Puppet Crown
Harold MacGrath
It recorded nothing more than the lens had seen, yet its flawlessness required no aid of art and asked no odds of color.
The Portal of Dreams
Charles Neville Buck
Flawlessness leaves the weaker imagination so little to take hold of: it is slippery.
Atlantic Classics, Second Series
Henry C. Merwin
Besides, it was the only way to preserve the purity of her intention, the flawlessness of the crystal.
The Flaw in the Crystal
May Sinclair
And what shall we say of bone itself as a mere material or tissue, with its admirable lightness, compactness, and flawlessness.
The Whence and the Whither of Man
John Mason Tyler

1640s, from flaw + -less. Related: Flawlessly; flawlessness.