sedate (
http://definr.com/sedate)
adj 1: characterized by dignity and propriety [syn:
staid]
2: dignified and somber in manner or character and committed to
keeping promises; "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" [syn:
grave,
sober,
solemn]
v : cause to be calm or quiet; "The patient must be sedated
before the operation" [syn:
calm,
tranquilize,
tranquillize,
tranquillise] [ant:
stimulate]