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: timid
Definition: showing fear and lack of confidence
Antonyms: bold
Definition: fearless and daring
Main entry: shy, timid, unsure, diffident
Definition: lacking self-confidence
Usage: stood in the doorway diffident and abashed; problems that call for bold not timid responses; a very unsure young man
Antonyms: confident
Definition: having or marked by confidence or assurance
Main entry: timid, faint, faint-hearted, fainthearted
Definition: lacking conviction or boldness or courage
Usage: faint heart ne'er won fair lady
Antonyms: courageous, brave
Definition: possessing or displaying courage; able to face and deal with danger or fear without flinching