All cautious antonyms

adj cautious

• inattentive — not attentive; negligent.
• negligent — guilty of or characterized by neglect, as of duty: negligent officials.
• foolish — resulting from or showing a lack of sense; ill-considered; unwise: a foolish action, a foolish speech.
• incautious — not cautious; careless; reckless; heedless.
• indiscreet — not discreet; lacking prudence, good judgment, or circumspection: an indiscreet remark.
• rash — acting or tending to act too hastily or without due consideration.
• reckless — utterly unconcerned about the consequences of some action; without caution; careless (usually followed by of): to be reckless of danger.
• unwise — not wise; foolish; imprudent; lacking in good sense or judgment: an unwise choice; an unwise man.
• hasty — moving or acting with haste; speedy; quick; hurried.
• heedless — careless; thoughtless; unmindful: Heedless of the danger, he returned to the burning building to save his dog.
• imprudent — not prudent; lacking discretion; incautious; rash.
• unguarded — not guarded; unprotected; undefended.
• observant — quick to notice or perceive; alert.
• certain — If you are certain about something, you firmly believe it is true and have no doubt about it. If you are not certain about something, you do not have definite knowledge about it.
• sure — free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.
• careless — If you are careless, you do not pay enough attention to what you are doing, and so you make mistakes, or cause harm or damage.
• thoughtless — lacking in consideration for others; inconsiderate; tactless: a thoughtless remark.