Attentive to examine probable effects and consequences of acts with a view to avoid danger or misfortune; prudent; circumspect; wary; watchful; as, a cautious general.

avoiding excess; "a conservative estimate"

cautious in attitude and careful in actions; prudent; "a cautious answer"; "very cautious about believing everything she was told"

people who are fearful and cautious; "whitewater rafting is not for the timid"

very careful; not taking chances

showing careful forethought; "reserved and cautious; never making swift decisions"; "a cautious driver"

unwilling to take risks