impermanence imperium • impermanency · · · Info · Definitions · Synonyms · Antonyms · Characters · · impermanence · · Text Latin · · Script 12 · · Length Definitions · · · (noun) the property of not existing for indefinitely long durations. Synonyms: impermanency. · · Noun Definition 1 Synonyms · · · impermanency · · Synonym 1 Antonyms · · · permanence · · Antonym 0 permanency · · Antonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072