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1. Avoiding excess
   "a cautious estimate";
   - conservative
    
2. Showing careful forethought
   "reserved and cautious; never making swift decisions"; "a cautious driver"

1. People who are fearful and cautious
   "whitewater rafting is not for the cautious";
   - timid

See also: cagey, cagy, careful, chary, fabian, gingerly, guarded, mod [informal], moderate, overcautious, restrained, softly-softly, unadventurous

Type of: people

Antonym: incautious

Encyclopedia: Cautious