A. cautious
B. thoughtful
C. weak
D. adventurous
Dauntless : showing fearlessness and determination.
Cautious : (of a person) careful to avoid potential problems or dangers. Thoughtful : absorbed in or involving thought.
Weak : lacking the power to perform physically demanding tasks; having little physical strength or energy.
Adventurous : willing to take risks or to try out new methods, ideas, or experiences.
Antonym of Dauntless is Cautious
