Quick Definition
αἰφνίδιος, ον Adj unexpected, sudden
Strong's Definition
unexpected, i.e. (adverbially) suddenly
Derivation: from a compound of G1 (Α) (as a negative particle) and G5316 (φαίνω) (compare G1810 (ἐξαίφνης)) (meaning non-apparent);
KJV Usage: sudden, unawares
UBS Dictionary of the Greek New Testament
adjc. | -ον | ἄφνω
67.113 · Time · Duration of Time without Reference to Points or Units of Time: Time, Spend Time, Always, Eternal, Old, Immediately, Young
suddenly, at once, immediately pertaining to an extremely short period of time between a previous state or event and a subsequent state or event In a number of contexts there is the implication of unexpectedness; but this seems to be a derivative of the context as a whole and not a part of the meaning of the lexical items.
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
αἰφνίδιος, -ον, (αἴφνης, ἀφανής, ἄφνω q. v.), unexpected, sudden, unforeseen: Lk. xxi. 34 [here WH ἐφνίδ., see their Intr. § 404 and App. p. 151]; 1 Th. v. 3. (Sap. xvii. 14; 2 Mace. xiv. 17; 3 Mace. iii. 24; Aeschyl., Thue. 2, 61 τὸ αἰφνίδιον καὶ ἀπροσδόκητον, Polyb., Joseph., Plut., Dion. Hal., al.)
Mounce Concise Greek Dictionary
αἰφνίδιος aiphnidios 2x
unforeseen, unexpected, sudden, Lk. 21:34; 1 Thess. 5:3*
Abbott-Smith Greek Lexicon
** αἰφνίδιος (in Lk 21:34, ἐφν- WH; v. M, Pr., 35), -ον
(< αἴφνης = ἄφνως, suddenly), [in LXX: Wi 17:15, II Mac 14:17, III Mac 3:24*;]
sudden, unexpected: Lk 21:34, I Th 5:3.†
Moulton & Milligan — Vocabulary of the Greek NT
αἰφνίδιος. The adverb occurs in P Fay 12374 8. (c. A.D. 100), an uneducated letter — alpvi8([.Jws (with a letter erased) εἴρηχεν ἡμῖν σήμερον : cf. Sy// 324° (i/B.c.) αἰφνίδιον σ(υ)μφορὰν θεασάμενος, also 26. 3207 αἰφνιδίως ἐπιβαλόνtos and OG/S 33015 (ii/B.c.) ἐκ τῆς αἰφνιδίου περιστάσεως.
Liddell-Scott-Jones — Greek-English Lexicon
αἰφνίδιος (aiphnidios) — sudden. αἰφνίδιος, ον, unforeseen, sudden, [Refs 5th c.BC+]. adverb -ίως[Refs] also -ιον [Refs 1st c.AD+]. αἰφνιδιοτυχής, ές, profiting by strokes of good fortune, [Refs]
STEPBible — Tyndale Abridged Greek Lexicon
📖 Greek Word Study — In-Depth Study from Precept Austin
Suddenly (160) aiphnidios
