Quick Definition
fearful, dreadful
Strong's Definition
frightful, i.e. (objectively) formidable
Derivation: from G5401 (φόβος);
KJV Usage: fearful, terrible
Thayer's Greek Lexicon
φοβερός, φοβερά, φοβερόν (φοβέω), from Aeschylus down, (fearful i. e.):
1. (actively) inspiring fear, terrible, formidable; the Sept. for πεψΘΰ.
2. (passively) affected with fear, timid; in the N. T., only in the former (active) sense: Heb_10:27; Heb_10:31; Heb_12:21.
Mounce Concise Greek Dictionary
φοβερός phoberos 3x
fearful; terrible, Heb_10:27 ; Heb_10:31 ; Heb_12:21
Abbott-Smith Greek Lexicon
φοβερός , -ά , -όν
( <φοβέω ),
[in LXX chiefly for H3372 , also for H1763 , H366 ;]
fearful , whether act, or pass .;
1. act. , = δεινός , causing fear, terrible ( LXX ): Heb_10:27 ; Heb_10:31 ; Heb_12:21
2. Pass ., = δειλός , feeling fear, timid ( cl . in both senses).†
Moulton & Milligan — Vocabulary of the Greek NT
φοβερός [page 673]
fearful (Heb. 10:27, al. ) : BGU II.428 .8 (ii/A.D.) φοβερὸς ἐγένετο before a lacuna, P Leid W xii. 9 (ii/iii A.D.) (=11. p. 121) ἐκλήθη δὲ ὀνόματι ἁλίῳ ἀναγραμματιζόμενον (=II. p. 121) ἐκλήθη δὲ ὀνόματι ἁγίῳ ἀναγραμματιζόμενον (= -ένῳ ) φωβερῷ καὶ φρεικτῷ ( l. φοβερῷ καὶ φρικτῷ ) and the magic PSI I. 28 .21 (iii/iv A.D.?). The Christian amulet P Oxy VIII. 1151 .55 (v/A.D.?) closes with the words ὅτι τὸ ὄνομά σου κύρἰε ὁ θεὄς , ἐπικαλεσά [μ ]ην τὸ θαυμαστὸν καὶ ὑπερένδοξον καὶ φοβερὸν τοῖς ὑπεναντι̣ο̣ι̣ς , upon thy name, O Lord God, have I called, the wonderful and exceeding glorious name, the terror of thy foes (Ed.) : cf. (Psa. 110꞉ 9 [MT Psa. 111:9], al. )
Liddell-Scott — Intermediate Greek Lexicon
φοβερός φοβερός, ή, όν [Etym: φόβος] "fearful", whether act. or pass.: act. "causing fear, dreadful, terrible, formidable", Hdt. , Aesch. , etc.; πλήθει φ. "formidable" only from numbers, Thuc. ; c. inf., φ. ἰδεῖν, φ. προσιδέσθαι "fearful" to behold, Aesch. , Eur. : τὸ ξύνηθες τοῖς πολίταις φοβερόν the "terror" habitual to the people, Thuc. "matter for fear, regarded with fear", οὐδὲ ὅρκος φ. id=Thuc. ; φοβεροὶ ἦσαν μὴ ποιήσειαν they "gave cause for fear" lest . . , Xen. ; τὸ φ. "terror, danger", id=Xen. ; φοβερόν [ἐστι] μὴ . . there is "reason to dread" that . . , id=Xen. pass. "feeling fear, afraid, timid", Soph. , Thuc. , etc. "caused by fear, panic", Thuc. ; φ. φροντίδες "anxious" thoughts, Plat. adv. -ρῶς, in both senses, Xen. , etc.; comp., φοβερώτερον, Sup., -ώτατα, id=Xen.
STEPBible — Tyndale Abridged Greek Lexicon
φοβερός, -ά, -όν
(φοβέω), [in LXX chiefly for יָרֵא, also for דְּחַל, אָיֹם ;]
fearful, whether act, or pass.;
__1. act., = δεινός, causing fear, terrible (LXX): Heb.10:27, 31 12:21
__2. Pass., = δειλός, feeling fear, timid (cl. in both senses).†
(AS)