← BackshareGuessflawiest/ˈflɔ.i.ɪst/adjectiveMost flawed; having the most mistakes, faults, or weaknesses.The flawiest part of the argument was the lack of evidence.Of all the samples, this one is the flawiest.That was the flawiest plan we have ever heard.SynonymsworstAntonymsflawlessbest