incisiveness incisively • incisor · · · Info · Definitions · Synonyms · Characters · · incisiveness · · Text Latin · · Script 12 · · Length Definitions · · · (noun) keenness and forcefulness of thought or expression or intellect. Synonyms: trenchancy. · · Noun Definition 1 Synonyms · · · trenchancy · · Synonym 1 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E s latin small letter s U+0073 v latin small letter v U+0076