mission impossible mission grass • missionize · · · Info · Definitions · Characters · · mission impossible · · Text Common · · Latin · · Scripts 18 · · Length 5 · · Syllables Definitions · · · (noun) an extremely dangerous or difficult mission. Synonyms: mission impossible. · · Noun Definition 1 Characters · · space U+0020 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073