This root form (lemma) is used in 3 different forms in the NT: ἀπείθειαν (AFS), ἀπειθείας (GFS), ἀπειθείᾳ (DFS).
It is glossed in 2 different ways: ‘of disbelief’, ‘disbelief’.
OET ROM 11:30 Greek word=ἀπειθείᾳ (apeitheia) Morphology=DFS English gloss=‘disbelief’ SR GNT ROM 11:30 word 16
OET ROM 11:32 Greek word=ἀπείθειαν (apeitheian) Morphology=AFS English gloss=‘disbelief’ SR GNT ROM 11:32 word 10
OET EPH 2:2 Greek word=ἀπειθείας (apeitheias) Morphology=GFS English gloss=‘of disbelief’ SR GNT EPH 2:2 word 28
OET EPH 5:6 Greek word=ἀπειθείας (apeitheias) Morphology=GFS English gloss=‘of disbelief’ SR GNT EPH 5:6 word 20
OET HEB 4:6 Greek word=ἀπείθειαν (apeitheian) Morphology=AFS English gloss=‘disbelief’ SR GNT HEB 4:6 word 16
OET HEB 4:11 Greek word=ἀπειθείας (apeitheias) Morphology=GFS English gloss=‘of disbelief’ SR GNT HEB 4:11 word 18