IPA: /ˈflɔːləs/
KK: /ˈflɔːləs/
Completely free from any mistakes or defects; perfect in every way.
Her performance was flawless, impressing everyone in the audience.
Flawless → It is formed from "flaw" (from Old English *flāw*, meaning a defect or blemish) and "-less" (meaning without). The word "flawless" means without any defects or blemishes.
Think of being 'without' ('-less') any 'defect' ('flaw') — that's why flawless means perfect or without faults.