Lexical Definition

‎ἀγενής‎ agenḗs (ag-en-ace') lowly ^G:A
from ‎Α‎ (as negative particle) and ‎γένος‎

base things.

• properly, without kin, i.e. (of unknown descent, and by implication) ignoble

Abbott-Smith

ἀγενής, -ές (< γένος),
1. unborn (Plat.);
2. of no family, ignoble, base (opp. to ἀγαθός, Soph., Fr., 105): opp. to εὐγενής, I Co 1:28 (for exx. from π., v. MM, VGT, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀγενής-ής, ές,

(γενέσθαι) unborn, uncreated, [Refs 5th c.BC+]

__II of no family, ignoble, opposed to ἀγαθός, [Refs 5th c.BC+]; of things, οὐκ ἀγενήςεῖς στίχοι [Refs 8th c.BC+]
__III childless, [Refs 4th c.BC+]