careless: P. and V. ῥᾴθυμος; use heedless.
imprudent: P. and V. ἀσύνετος, ἄβουλος, P. ἀλόγιστος, V. κακόφρων (Euripides, Iphigenia in Aulis 391); see rash.
inconsiderate: P. and V. ἀγνώμων.
light-hearted: V. κουφόνους.
