Abbott-Smith Manual Greek Lexicon
ἄδικος (G94)
12 ἄδικος , -ον ( δίκη ), [in LXX for שׁקר , עול , etc.;] unjust : Ro 3:5 , He 6:10 . unrighteous, wicked : Lk 16:11 18:11 , Ac 24:15 , I Co 6:1 , 9 I Pe 3:18 ; opp. to δίκαιος , Mt 5:45 ; to εὐσεβής , II Pe 2:9 ; to πιστός , Lk 16:10 (Cremer, 200).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain