Quick Definition
unjust, unrighteous
Strong's Definition
unjust; by extension wicked; by implication, treacherous; specially, heathen
Derivation: from G1 (Α) (as a negative particle) and G1349 (δίκη);
KJV Usage: unjust, unrighteous
Thayer's Greek Lexicon
ἄδικος, (δίκη) (from Hesiod down); descriptive of one who violates or has violated justice:
1. unjust (of god as judge): Rom_3:5; Heb_6:10.
2. of one who breaks god's laws, unrighteous, sinful (see ἀδικία, 2): (1Co_6:9); opposed to δίκαιος, Mat_5:45; Act_24:15; 1Pe_3:18 : opposed to εὐσεβής, 2Pe_2:9; in this sense according to Jewish speech the gentiles are called ἄδικοι, 1Co_6:1 (see ἁμαρτωλός, b. β.).
3. specifically, of one who deals fraudulently with others, Luk_18:11; who is false to a trust, Luk_16:10 (opposed to πιστός); deceitful, μαμωνᾶς, ibid. Luk_16:11 (for other interpretations see ἀδικία, 2 b.).
Mounce Concise Greek Dictionary
ἄδικος adikos 12x
unjust, unrighteous, iniquitous, vicious; deceitful, fallacious evildoer; unjust; unrighteous; wicked, wickedness.
Abbott-Smith Greek Lexicon
ἄδικος , -ον
( <δίκη ),
[in LXX for H8267 , H5766 , etc.;]
1. unjust: Rom_3:5 , Heb_6:10 .
2. unrighteous, wicked: Luk_16:11 ; Luk_18:11 , Act_24:15 , 1Co_6:1 ; 1Co_6:9 , 1Pe_3:18 ; opp . to δίκαιος , Mat_5:45 ; to εὐσεβής , 2Pe_2:9 ; to πιστός , Luk_16:10 ( Cremer , 200).†
Moulton & Milligan — Vocabulary of the Greek NT
ἄδικος [page 10]
P Tebt II. 286 .7 (A.D. 121 38) νομὴ ἄδικος [οὐ ]δὲν εἰσχύει , unjust possession is invalid ; ib. 302 .13 (A.D. 71 2) ἄδικόν [ἐστιν ἡμᾶς ἀπαιτεῖσθαι ]. Of a person, BGU II. 531 ii. 21 (ii/A.D.) πέπεισαι [γὰρ ] μοῦ τῇ γνώμῃ ὡς οὔτε εἰμὶ ἄδικος οὔτε ἀ [λ ]λοτρίων ἐπιθυμητής . Instances need not be multiplied.
Liddell-Scott — Intermediate Greek Lexicon
ἄδικος [Etym: δίκη] of persons, "wrong-doing, unrighteous, unjust", Hes. , Hdt. , etc.; ἀδικώτατος Soph. :— ἄδ. εἴς τι "unjust in" a thing, ἔς τινα "towards" a person, Hdt. ; περί τινα Xen. ; c. inf. "so unjust as to" . . NTest. ἄδ. ἵπποι "obstinate, unmanageable", Xen. of things, "wrongly done, wrong, unjust", ἔργματα Theogn. , Hdt. , etc.; τὸ δίκαιον καὶ τὸ ἄδ., τὰ δίκαια καὶ ἄδικα right and "wrong", Plat. adv. -κως, Solon , etc.; τοὺς ἀδ. θνήσκοντας Soph. ; εἴτε δικαίως εἴτε ἀδ. "jure an injuria", Hdt. ; οὐκ ἀδ. not "without reason", Plat.
STEPBible — Tyndale Abridged Greek Lexicon
ἄδικος, -ον
(δίκη), [in LXX for שׁקר, עול, etc. ;]
__1. unjust: Rom.3:5, Heb.6:10.
__2. unrighteous, wicked: Luk.16:11 18:11, Act.24:15, 1Co.6:1,9 1Pe.3:18; opposite to δίκαιος, Mat.5:45; to εὐσεβής, 2Pe.2:9; to πιστός, Luk.16:10 (Cremer, 200).
† (AS)