Synonyms of tranquillize in English:

tranquillize


See UK English definition of tranquillize

verb

1‘as a last resort you may need to tranquillize the horse’

SYNONYMS
sedate, calm, calm down, soothe, pacify, settle someone's nerves, settle something's nerves, mollify, lull, relax
stupefy, anaesthetize, narcotize, knock out, drug
administer a sedative to, administer a tranquillizer to
British quieten, quieten down
North American quiet, quiet down
informal dope, zonk
ANTONYMS

agitate, disturb, ruffle