Quick Definition
ἀδικέω v. I act unjustly towards
Strong's Definition
from 94; to be unjust, i.e. (actively) do wrong (morally, socially or physically)
KJV Usage: hurt, injure, be an offender, be unjust, (do, suffer, take) wrong
UBS Dictionary of the Greek New Testament
verb | ἀ- + δικαιόω
20.25 · Violence, Harm, Destroy, Kill · Harm, Wound
to harm, to hurt to hurt or to harm, with the implication of doing something which is wrong and undeserved
LUK 10:19 · ACT 7:26 · ACT 7:27 · 2PE 2:13 · REV 2:11 · REV 6:6 · REV 7:2 · REV 7:3 · REV 9:4 · REV 9:10 · REV 9:19 · REV 11:5 · REV 11:5
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἀδικέω, -@; [fut. ἀδικήσω]; 1 aor. ἠδίκησα; Pass., [pres. ἀδικοῦμαι}; 1 aor. ἠδικήθην ; literally to be ἄδικος. 1. absolutely; a. to act unjustly or wickedly, to sin: Rey. xxii. 11; Col. iii. 25. Ὁ. to be a criminal, to have violated the laws in some way: Acts xxv. 11, (often so in Grk. writ. [ef. W. § 40, 2 6.1). ¢. todo wrong: 1 Co. vi. 8; 2 Co. vii. 12. d. to do hurt: Rev. ix. 19. Zh transitively; a. ri, to do some wrong, sin in some respect: Col. iii. 25 (ὃ ἠδίκησε ‘the wrong which he hath done’). b. τινά, to wrong some one, act wickedly towards him: Acts vii. 26 sq. (by blows); Mt. xx. 13 (by fraud); 2 Co. vii. 2; pass. ἀδικεῖσθαι to be wronged, 2 Co. vii. 12; Acts vii. 24; mid. ἀδικοῦμαι to suffer one’s self to be wronged, take wrong [W. § 38, 3; cf. Riddell, Platonic Idioms, § 87 sq.]: 1 Co. vi. 7; τινὰ οὐδέν [B. § 131,10; W. 227 (213)], Acts xxy. 10; Gal. iv. 12; τινά τι, Philem. 18; [ἀδικούμενοι μισθὸν ἀδικίας (ΤᾺ. V. suffering wrong as the hire of wrong-doing), 2 Pet. ii. 13 WH Tr mrg.]. to hurt, damage, harm (in this sense by Greeks of every period): Lk. x. 19; Rev. vi. 6; vii. 2 sq.; ix. 4, 10; xi. 5; pass. οὐ μὴ ἀδικηθῇ ἐκ τοῦ θανάτου shall suffer no violence from death, Rev. ii. 11.
Mounce Concise Greek Dictionary
ἀδικέω adikeō 28x
to act unjustly; wrong; injure; violate a law
Abbott-Smith Greek Lexicon
ἀδικέω, -ῶ
(< ἄδικος), [in LXX for עשׁק, עוה, etc.;]
intrans., to be ἄδικος, do wrong, act wickedly or criminally: Ac 25:11, I Co 6:8, II Co 7:12, Col 3:25, Re 22:11; to do hurt, Re 9:19.
Trans. to do some wrong: ὃ ἠδίκησεν, Col 3:25; to wrong some one, Mt 20:13, Ac 7:26, 27 25:10, II Co 7:2, Ga 4:12, Phm 18, II Pe 2:13; pass., Ac 7:24, II Co 7:12; mid., I Co 6:7 (suffer . . . to be wronged; WM, §38, 3; but v. Bl., §54, 5; and cf. ἀποστερέω);
to injure, hurt: Lk 10:19 Re 2:11 6:6 7:2, 3 9:4, 10 11:5.†
Liddell-Scott-Jones — Greek-English Lexicon
ἀδικέω (adikeō) — to harm. ἀδῐκέω, Aeolic dialect ἀδικήω [Refs 7th c.BC+], Doric dialect ἀδικίω [Refs]imperfect ἠδίκεον or ἠδίκευν[Refs 5th c.BC+]:—passive, future in middle form ἀδικήσομαι[Refs 5th c.BC+]: —to be ἄδικος, do wrong (defined by [Refs 4th c.BC+]those who have sinned, [Refs 5th c.BC+] and Attic dialect; τἀδικεῖν wrong-doing, [Refs 5th c.BC+]; τὸ μὴ ἀδικεῖν righteous dealing, [Refs 4th c.BC+]:— in legal phrase, do wrong in the eye of the law, the particular case being added in participle, as Σωκράτης ἀ... ποιῶν.. καὶ διδάσκων[Refs 5th c.BC+]; ἀ. πολλά, μεγάλα, etc., [Refs 5th c.BC+]; ἀ. εἰς πόλιν, κτῆμα, [Refs 4th c.AD+]:—in games or contests, play foul, [Refs 5th c.BC+] __b in present, to be in the wrong, εἰ μὴ ἀδικῶ γε if I am not mistaken, [Refs 5th c.BC+]
II. transitive with accusative person, wrong, injure, [Refs 7th c.BC+]:— ruin, of a girl, [Refs 4th c.BC+]: with double accusative, wrong one in a thing, [Refs 5th c.BC+]:—passive, to be wronged, injured, μὴ δῆτ᾽ ἀδικηθῶ[Refs 5th c.BC+]; present ἀδικεῖται, -ούμενος used for the perfect ἠδίκηται, -ημένος (see.[Refs 5th c.BC+]: with accusative, to be defrauded of, μισθὸν ἀδικίας variant in [NT]
II.2. harm, injure, ἀ. γῆν[Refs 5th c.BC+]