Quick Definition
blameless
Strong's Definition
irreproachable
Derivation: from G1 (Α) (as a negative particle) and a derivative of G3201 (μέμφομαι);
KJV Usage: blameless, faultless, unblamable
Thayer's Greek Lexicon
ἄμεμπτος, (μέμφομαι to blame), blameless, deserving no censure (Tertullianirreprehensibilis), free from fault or defect: Luk_1:6; Php_2:15; Php_3:6; 1Th_3:13 (WH marginal reading ἀμέμπτως); Heb_8:7 (in which nothing is lacking); in the Sept. equivalent to ϊΘΜν, Job_1:1; Job_1:8 etc., common in Greek writings. (Cf. Trench, § ciii.)
Mounce Concise Greek Dictionary
ἄμεμπτος amemptos 5x
blameless, irreprehensible, without defect, Luk_1:6 ; Php_2:15 ; Php_3:6 ; 1Th_3:13 ; Heb_8:7
Abbott-Smith Greek Lexicon
ἄ -μεμπτος , -ον
( < μέμφομσι ),
[in LXX chiefly for H8535 ;]
blameless, free from fault (in Papyri of a marriage-contract; M , Th ., I, 3:13; cf. MM , VGT , s.v. ): Luk_1:6 , Php_2:15 ; Php_3:6 , 1Th_3:13 ( WH , mg ., -ως ) Heb_8:7 .†
SYN .: ἄμωμος G299 , ἀνέγκλητος G410 , ἀνεπίλημπτος G423 , q.v. ( Tr., Syn. , § ciii).
Moulton & Milligan — Vocabulary of the Greek NT
ἄμεμπτος [page 26]
In a private letter of the time of Augustus the writer remarks κἀγὼ τὴ [ς ] φιλίαν σου [θ̣ε̣λ̣ω̣ι̣] ἄμεμπτ [ον ] ἐματὸν ἐτήρησα (BGU IV. 1141 25 ). For the adjective in a marriage contract see CPR I. 27 13 (A.D. 190) αὐτῆς δὲ τῆς Θ . ἄμεμπτον καὶ ἀκατηγόρη [τον ἑαυτὴν παρ ]εχομένην ( sic ). It is common in sepulchral epitaphs in conjunction with χρηστός . OGIS 443 9 (i/B.C.) has τήν τε τῶν . . . νεανίσκων ἐνδημίαν εὔτ [ακτ ]ον π [αρέχεται καὶ ἄμεμπ ]τον Dittenberger s supplement is at least plausible. For the adverb see P Giss I. 98 5 (ii/A.D.) τὰ τέσσερα οὖν κολοφώνια τὰ ἐπιβάλλοντά μοι δότε αὐτῇ ἀμέμπτως , ἀλλ᾽ ἐν τάχει , P Lond 924 6 (A.D. 187 8) (= III. p. 134) ἀ . πληρουμένων little more than duly paid, P Oxy III. 473 4 (A.D. 138 60), ib. 496 8 (A.D. 127) συμβιούτωσαν οὖν ἀλλή [λο ]ις ἀμέμπτω [ς οἱ γ ]αμοῦντες , and IV. 724 10 (A.D. 155), a contract of apprenticeship to a shorthand writer, where provision is made that the pupil shall be taught not only to write fluently, but to read what he has written ἀμέμπτως . From the inscriptions cf. OGIS 485 13 f. τὰς λοιπὰς δὲ φιλοτειμίας τελιάσαντα ἁγνῶς καὶ ἀμέμπτως .
Liddell-Scott — Intermediate Greek Lexicon
ἄμεμπτος [Etym: μέμφομαι] "not to be blamed, blameless", Eur. , Dem. ; ἄμεμπτος χρόνου "in regard of" time, Aesch. ; ἀμεμφής Aesch. of things, "perfect in its kind", Xen. ; ἄμ. ἐκείνηι "without blame" to her, Plut. : comp. ἀμεμπτότερος, "less blameworthy", id=Plut. :—adv. -τως, "so as to merit no blame, right well", Soph. , Xen. act. "not blaming, content", ἀμεμφής Plut. , ἄμεμπτόν τινα ποιεῖσθαι Xen. :—so adv., ἀμέμπτως δέχεσθαί τινα "without censure", id=Plut.
STEPBible — Tyndale Abridged Greek Lexicon
ἄ-μεμπτος, -ον
(μέμφομσι), [in LXX chiefly for תָּם ;]
blameless, free from fault (in π. of a marriage-contract; M, Th., I, 3:13; cf. MM, VGT, see word): Luk.1:6, Php.2:15 3:6, 1Th.3:13 (WH, mg., -ως) Heb.8:7.†
SYN.: ἄμωμος, ἀνέγκλητος, ἀνεπίλημπτος, which see (Tr., Syn., § ciii) (AS)