Main entry: calm, sedate, tranquilize, tranquillise, tranquillize
Definition: cause to be calm or quiet as by administering a sedative to
Usage: The patient must be sedated before the operation
Antonyms: stimulate, brace, arouse, energise, energize, perk up
Definition: cause to be alert and energetic
Main entry: sober, solemn, sedate, grave
Definition: dignified and somber in manner or character and committed to keeping promises
Usage: a grave God-fearing man; a quiet sedate nature; as sober as a judge; a solemn promise; the judge was solemn as he pronounced sentence
Antonyms: frivolous
Definition: not serious in content or attitude or behavior
Main entry: sedate, staid
Definition: characterized by dignity and propriety
Antonyms: indecorous, indelicate
Definition: lacking propriety and good taste in manners and conduct