Lexical Definition

‎προπετής‎ propetḗs (prop-et-ace') reckless ^G:A
from a compound of ‎πρό‎ and ‎πίπτω‎

heady, rash(-ly).

• falling forward, i.e. headlong (figuratively, precipitate)

Abbott-Smith

προπετής, -ές (< προπίπτω), [in LXX: Pr 10:14 (אֱוִיל) 13:3 (פֹּשׂק) Si 9:18*;]
falling forwards, headlong. Metaph., precipitate, rash, reckless: of persons, II Ti 3:4; of things, Ac 19:36.†

Abbott-Smith References

Liddell-Scott-Jones

προπετής-ής, ές,

(προπίπτω) falling or slipping down in bed, εἰ π. γένοιτο [Refs 5th c.BC+]out of control, [Refs 4th c.BC+]

__2 inclined forward, κεφαλὴ τοῦ βραχίονος π. ἐς τοὔμπροσθεν [Refs 5th c.BC+]; -έστεραι γένυες more prominent,[Refs 5th c.BC+]; sloping, of shoulders, [Refs 2nd c.AD+]; stooping, μὴ ὀρθὸς ἀλλὰ μικρῷ -έστερος [Refs 4th c.BC+]
__3 thrown away, κεῖται προπετήςές [τὸ κάταγμα] [Refs 5th c.BC+]
__4 drooping, at the point of death, ζῇ γὰρ π. [Refs]; ἡ π. Μοῖρα untimely, [Refs 2nd c.AD+]
__5 prominent, of the eyes, [Refs 2nd c.AD+]; γνάθοι, ὀφρῦς, [Refs 2nd c.AD+]
__II metaphorically,
__II.1 being upon the point of, πολιὰς ἐπὶ χαίτας π. [Refs 5th c.BC+]
__II.2 ready for, prone to a thing, ἐπί or εἴς τι, [Refs 5th c.BC+]: with infinitive, -έστατος μεταστῆσαι [Refs 5th c.BC+]
__II.3 headlong, π. ἄγειν τὸν ἀκροατήν [Refs 4th c.BC+]
__II.4 precipitate, rash, reckless, π. σώματος ἡδοναί [Refs 4th c.BC+]; π. γέλως uncontrolled laughter, [Refs 5th c.BC+]; of a lot, drawn at random, [Refs 5th c.BC+]
__II.4.b of persons, οἱ θρασεῖς προπετήςεῖς [Refs 4th c.BC+]; μανικὸς καὶ π. ἐπὶ τῶν κινδύνων Theopomp.[προπετήςεῖς “APl.” 4.89 (Gall.)">Refs 2nd c.AD+]; τὸ π., ={προπέτεια}, opposed to τὸ σεμνόν, [Refs 5th c.BC+]
__II.5 ἁρμονίαι π. flowing rhythms, [Refs 1st c.BC+]
__II.6 in Medicine texts, subject to diarrhoea, [Refs 2nd c.AD+]
__III adverb -τῶς headlong, out of control, π. εἰς τὸ κάταντες φέρεσθαι [Refs 5th c.BC+]
__III.2 metaphorically, headlong, hastily, π. φέρεσθαι εἰς τὴν τυραννίδα Id [προπετήςέως ταχυγλωσσότεροι 5th c.BC: Hippocrates Medicus “ἐπιδημίαι” 4.45; ἐπερέσθαι π. 5th-6th c.BC: Xenophon Historicus “Institutio Cyri (Cyropaedia)” 1.3.8, cf. Mem. “Epit.” 306">Refs 5th c.BC+]; ἀποκρίνεσθαι, ἀποφαίνεσθαι, etc., [Refs 5th c.BC+]; π. ἔχειν to be rash, [Refs 5th c.BC+]; prematurely, [Refs 3rd c.BC+]