listlessness listlessly • listred · · · Info · Definitions · Synonyms · Characters · · listlessness · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a feeling of lack of interest or energy. Synonyms: languor, lassitude. · · Noun Definition 1 (noun) inactivity resulting from lethargy and lack of vigor or energy. Synonyms: torpidity, torpidness, torpor. · · Noun Definition 2 Synonyms · · · languor · · Synonym 1 lassitude · · Synonym 2 torpidity · · Synonym 3 torpidness · · Synonym 4 torpor · · Synonym 5 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 t latin small letter t U+0074