sedation sedateness • sedative · · · Info · Definitions · Synonyms · Characters · · sedation · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a state of reduced excitement or anxiety that is induced by the administrative of a sedative agent. · · Noun Definition 1 (noun) the administration of a sedative agent or drug. Synonyms: drugging. · · Noun Definition 2 Synonyms · · · drugging · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074