ˈfȯltlə̇s adjective
Etymology: Middle English fautles, from faute fault + -les -less — more at fault
: having no fault : free from defect, imperfection, failing, blemish, or error : irreproachable
gave a faultless performance on his first appearance as a concert pianist
a faultless complexion
faultless workmanship
• fault·less·ly adverb
• fault·less·ness noun -es