2. (verb)sedate, calm, tranquilize, tranquillize, tranquillise cause to be calm or quiet as by administering a sedative to Synonyms: tranquilize, tranquillize, becalm, tranquillise, still, chill out, quiet, sedate, cool off, cool it, simmer down, steady, settle down, calm, lull, calm down, quieten
Synonyms, Thesaurus & Antonyms of 'tranquilize'
English Synonyms and Antonyms
1. tranquilize Allay and alleviate are closely kindred in signification, and have been often interchanged in usage. But, in strictness, to allay is to lay to rest, quiet or soothe that which is excited; t Synonyms: allay, alleviate, compose, quiet, still, appease, mollify, soothe, tranquilize, calm, pacify Antonyms: agitate, excite, kindle, rouse, stir up, arouse, fan, provoke, stir
Synonyms for tranquilize 
