fallen arch fallen • fallenness · · · Info · Definitions · Synonyms · Characters · · fallen arch · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) an instep flattened so the entire sole rests on the ground. Synonyms: sunken arch, fallen arch. · · Noun Definition 1 Synonyms · · · sunken arch · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072