Sedates is a verb that means to calm or tranquilize someone, but there are several antonyms for this word, which are used to convey the opposite meaning of sedating someone. Some of the antonyms of sedates include excites, stimulates, wakes up, energizes, animates, enlivens, invigorates, and arouses. These words imply a sense of alertness, liveliness, and enthusiasm, that is quite different from the sedating effect. Stimulants like caffeine, sugar, and adrenaline can help invigorate a tired or sluggish person, while exciting activities like sports, dancing, or socializing can bring out one's energy and vitality. Therefore, the antonyms of sedates indicate a state of active engagement rather than a state of restraint or relaxation.