mid-14c., "having no blemishes or imperfections," from fault (n.) + -less. Meaning "having no blame, culpability, or guilt" is from 1570s. Related: Faultlessly; faultlessness.
faultless logic
fauces
faucet
faugh
fault
fault-finding
faultless
faulty
faun
fauna
faunal
Fauntleroy
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