Main entry: cautious, timid
Definition: people who are fearful and cautious
Usage: whitewater rafting is not for the timid
Antonyms: brave
Definition: people who are brave
Main entry: cautious
Definition: showing careful forethought
Usage: reserved and cautious; never making swift decisions; a cautious driver
Antonyms: incautious
Definition: lacking in caution
Antonyms: unrestrained
Definition: not subject to restraint
Main entry: cautious, conservative
Definition: avoiding excess
Usage: a conservative estimate
Antonyms: immoderate
Definition: beyond reasonable limits