From Longman Dictionary of Contemporary Englishfaultlessfault‧less /ˈfɔːltləs $ ˈfɒːlt-/ adjective PERFECThaving no mistakes SYN perfect a faultless performance —faultlessly adverb
Examples from the Corpus
faultless• But there's plenty of seat adjustment and the driving position is faultless.• I was more than pleased with my choice, and again, the presentation was faultless.• Each forgery had to be faultless, and each took time.• The evidence before our eyes is her faultless attention to detail in these exquisite flower decorations.• Over the years, we kept in touch by telephone and he was a faultless correspondent.• To succeed again they will have to improve their fitness and concentration, the only flaws in an otherwise faultless game-plan.• a faultless memory• In typical Honda fashion the gearbox is faultless, too. 