mid-14c., "having no blemishes or imperfections," from fault (n.) + -less. Meaning "having no blame, culpability, or guilt" is from 1570s. Related: Faultlessly; faultlessness.
权威例句
1. The ballerina remained suspended in a faultless arabesque.
这位芭蕾舞女演员一直保持着完美的阿拉贝斯克舞姿不动。
2. Hans's English was faultless.
汉斯的英语无可挑剔。
3. When I was eight years old, my parents were faultless gods.
八岁时, 我视父母为完美无缺的崇拜偶像.
4. He is lifeless that is faultless.
只有死人才不犯错误.
5. Her carriage and diction were always faultless.