Wordnet 3.0
ADJECTIVE (1)
1.
of or relating to the period in Jewish history after 539 BC (after the Babylonian Captivity);
The Collaborative International Dictionary of English v.0.48:
Postexilian \Post`ex*il"i*an\, Postexilic \Post`ex*il"ic\, a.]
After the exile; specif. (Jewish Hist.), belonging to a
period subsequent to the Babylonian captivity or exile (b. c.
597 or about 586-about 537).
[Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):
postexilic
adj 1: of or relating to the period in Jewish history after 539
BC (after the Babylonian Captivity)