undersurface undersupport • under-surface · · · Info · Definitions · Synonyms · Characters · · undersurface · · Text Latin · · Script 12 · · Length 4 · · Syllables Definitions · · · (noun) the lower side of anything. Synonyms: bottom, underside. · · Noun Definition 1 Synonyms · · · bottom · · Synonym 1 underside · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075