G0283
ἀμίαντος
pure
ἀ-μίαντος, -ον (μιαίνω), [in LXX: Wis.3:13 4:2 8:20, 2Ma.14:36 2Mac 15:34 * ;] undefiled, free from contamination (in π., of αἰθήρ; MM, VGT, see word): Heb.7:26 13:4, 1Pe.1:4, Jas.1:27.† SYN.: ἄμωμος, ἄσπιλος (Cremer, 784) (AS)
Full Thayer's lexicon entry
ἀμίαντος — amíantos
ἀμίαντος, (μιαίνω), "not defiled, unsoiled; free from that by which the nature of a thing is deformed and debased, or its force and vigor impaired": καίτη pure, free from adultery, Heb 13:4; κληρονομία (without defect), 1Pe 1:4; θρησκεία, Jas 1:27; pure from sin, Heb 7:26. (Also in the Greek writings; in an ethical sense, Plato, legg. 6, p. 777 e.; Plutarch, Periel. e. 39 βίος καθαρός καί ἀμίαντος.)
4 occurrences
Hebrews (2), James (1), I Peter (1)