G4312
προπετής
reckless
προπετής, -ές (προπίπτω), [in LXX: Pro.10:14 (אֱוִיל) Pro.13:3 (פָּשַׂק) Sir.9:18 * ;] falling forwards, headlong. Metaphorical, precipitate, rash, reckless: of persons, 2Ti.3:4; of things, Act.19:36.† (AS)
The KJV translates G4312 in the following manner:
heady (2x), rashly (2x)
Full Thayer's lexicon entry
προπετής — propetḗs
προπετής, προπετές (πρό and πέτω i. e. πίπτω);
1. falling forward, headlong, sloping, precipitous: Pindar Nem. 6, 107; Xenophon, r. eq. 1, 8; others.
2. precipitate, rash, reckless: Act 19:36; 2Ti 3:4 (Pro 10:14; Pro 13:3; Sir 9:18; Clement of Rome, 1Co 1:1-31; 1Co 1:1-31 [ET]; and often in Greek writings).
2 occurrences
Acts (1), II Timothy (1)