Quick Definition
ἀψευδής, ές Adj not guilty of falsehood, truthful
Strong's Definition
from 1 (as a negative particle) and 5579; veracious
KJV Usage: that cannot lie
UBS Dictionary of the Greek New Testament
adjc. | -ές | ἀ- + ψεύδομαι
88.40 · Moral and Ethical Qualities and Related Behavior · Honesty, Sincerity
truthful pertaining to not speaking falsehood
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
ἀψευδής, -ἐς, (ψεῦδος), without lie, truthful: Tit. i. 2. (in Grk. writ. fr. Hes. theog. 233 down.)
Mounce Concise Greek Dictionary
ἀψευδής apseudēs 1x
free from falsehood; incapable of falsehood, Tit. 1:2*
Abbott-Smith Greek Lexicon
** ἀ-ψευδής, -ές
(< ψεῦδος), [in LXX: Wi 7:17*;]
free from falsehood, truthful: Tit 1:2.†
Moulton & Milligan — Vocabulary of the Greek NT
ἀψευδής. P Lond 121570. (magic, iii/A.D.) (=I. p. 102) ἐπὶ τῷ ἀχράντῳ φωτὶ ὀχούμενος ἀψευδής. The adverb is restored in BGU II. 432}. (A.D. 190) Aeyopevol. ἀψ]ευδῶς πρὸς κτλ: cf. also the late P Lond IV. 1343° (A.D. 709) ἀψευδῶς Kal ἀσυμπαθῶς. The passive adj. occurs in Pretsigke 1070 (a προσκύνημα from Abydos)... καὶ ἄψευστον kal δι᾽ ὅλης οἰκουμέν(ης) μαρτυρούμενον οὐράνιον θεὸν [Βησᾶν ἐ]δείσα© ἴμεν, and P Leid Wx". # ὁ ἔχον τὴν ἄψευστον ἀλήθειαν.
Liddell-Scott-Jones — Greek-English Lexicon
ἀψευδής (apseudēs) — not a liar. ἀψευδ-ής, ές, without deceit, truthful, especially of oracles and the like, [Refs 8th c.BC+]; μάντις ἀ., of Apollo, [Refs 5th c.BC+]; θεός[NT]; ἀψευδεῖ τέχνῃ, of augury, [Refs 5th c.BC+]; unerring, [Refs 5th c.BC+]
2. of things, uncorrupt, pure from all deceit, ἀ. πρὸς ἄκμονι χάλκευε γλῶσσαν[Refs 5th c.BC+]
3. ἀψευδής, ={κώνειον}, Ps.-[Refs 1st c.AD+]
II. adverb -δέως, Attic dialect-δῶς, really and truly, οἱ ἀ. ἄριστοι[Refs 5th c.BC+]: superlative -έστατα, ἐρεῖν[Refs 1st c.AD+]