Lexical Definition

‎ἄθεος‎ átheos (ath'-eh-os) without God G:A
from ‎Α‎ (as a negative particle) and ‎θεός‎

without God.

Usage: 1 form in 1 verse
Form Translated As     In Verse(s)
ἄθεοι without God Eph.2.12

Abbott-Smith

* ἄ-θεος, -ον,
1. in cl.
(a) slighting or denying the gods (Plat.; cf. MM, VGT, s.v.);
(b) godless, ungodly (Pind.);
(c) abandoned by the gods (Soph.)
2. In the NT (cf. Lft. on Ign. ad Trail, §3), of the heathen, without God, not knowing God (Cremer, 281): Eph 2:12.†

Abbott-Smith References

Book Refs
Ephesians 2:12

Liddell-Scott-Jones

ἄθεος, ον,

__B without vision, τινός[Refs 3rd c.AD+] (assuming variant; ἀθέ[ατ]ος Volkmann).
__B.2 unseen, [Refs 2nd c.AD+]