missive Mississippian • missmark · · · Info · Definitions · Synonyms · Characters · · missive · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a written message addressed to a person or organization. Synonyms: letter. Example: "Mailed an indignant letter to the editor." · · Noun Definition 1 Synonyms · · · letter · · Synonym 1 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D s latin small letter s U+0073 v latin small letter v U+0076