← BackshareGuesssedateness/sɪˈdeɪtnəs/nounThe quality of being calm, dignified, and unhurried.Her sedateness during the crisis impressed everyone.The garden's sedateness offered a peaceful escape from the busy city.The sedateness of the library made it a perfect place to study.SynonymscomposureserenitycalmnessAntonymsagitationhysteria