Cautious
Antonyms of CAUTIOUS
- careless, thoughtless, inconsiderate, indiscreet, unwise, negligent, unintentional, unplanned, foolish, hasty, lax, certain, brave, unobservant, inattentive, oblivious, incautious, dull, imprudent, heedless, injudicious, regardless, unmindful, asleep, inadvertent, uncareful, unguarded, drowsy, immoderate, sure, reckless, rash.