permanence permalloy • permanency · · · Info · Definitions · Synonyms · Antonyms · Characters · · permanence · · Text Latin · · Script 10 · · Length Definitions · · · (noun) the property of being able to exist for an indefinite duration. Synonyms: permanency. · · Noun Definition 1 Synonyms · · · permanency · · Synonym 1 Antonyms · · · impermanence · · Antonym 0 impermanency · · Antonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 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