Strong's Concordance

Original word: ἄθεος
Transliteration: atheos
Definition (short): God
Definition (full): godless, ungodly

NAS Exhaustive Concordance

Word Origin: from alpha (as a neg. prefix) and theos
Definition: godless, ungodly
NASB Translation: without God (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From a (as a negative particle) and theos; godless -- without God.

see GREEK a

see GREEK theos

KJV: That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
NASB: remember that you were at that time separate from Christ, excluded from the commonwealth of Israel, and strangers to the covenants of promise, having no hope and without God in the world.