underskirt underskin • undersky · · · Info · Definitions · Synonyms · Characters · · underskirt · · Text Latin · · Script 10 · · Length Definitions · · · (noun) undergarment worn under a skirt. Synonyms: petticoat, half-slip. · · Noun Definition 1 Synonyms · · · petticoat · · Synonym 1 half-slip · · Synonym 2 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 k latin small letter k U+006B n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075