Main entry: stimulate, brace, arouse, energise, energize, perk up
Definition: cause to be alert and energetic
Usage: Coffee and tea stimulate me; This herbal infusion doesn't stimulate
Antonyms: calm, sedate, tranquilize, tranquillise, tranquillize
Definition: cause to be calm or quiet as by administering a sedative to
Antonyms: de-energise, de-energize
Definition: deprive of energy