perpetuity perpetuator • perplantar · · · Info · Definitions · Synonyms · Characters · · perpetuity · · Text Latin · · Script 10 · · Length Definitions · · · (noun) the property of being perpetual (seemingly ceaseless). Synonyms: sempiternity. · · Noun Definition 1 Synonyms · · · sempiternity · · Synonym 1 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079