laboriousness laboriously • laborism · · · Info · Definitions · Synonyms · Characters · · laboriousness · · Text Latin · · Script 13 · · Length 5 · · Syllables Definitions · · · (noun) the quality of requiring extended effort. Synonyms: operoseness, toilsomeness. · · Noun Definition 1 Synonyms · · · operoseness · · Synonym 1 toilsomeness · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 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 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075