liveness liven • liver · · · Info · Definitions · Synonyms · Characters · · liveness · · Text Latin · · Script 8 · · Length Definitions · · · (noun) the property of being animated; having animal life as distinguished from plant life. Synonyms: animateness, aliveness. · · Noun Definition 1 Synonyms · · · animateness · · Synonym 1 aliveness · · Synonym 2 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 v latin small letter v U+0076