sedate
adjective
1. characterized by dignity and propriety
Similar word(s): decorous, staid
2. dignified and serious in manner or character and committed to keeping promises
- a quiet sedate nature
verb
1. cause to be calm or quiet as by administering a sedative to
- The patient must be sedated before the operation
Similar word(s): calm, tranquilize, tranquillise, tranquillize