sedate

verbs

cause to be calm or quiet as by administering a sedative to

"The patient must be sedated before the operation"

is derived from

is derived from

antonym

characterized by dignity and propriety

sedate, staid

is derived from

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"

grave, sedate, sober, solemn

is derived from