trenchancy trench • trenchant · · · Info · Definitions · Synonyms · Characters · · trenchancy · · Text Latin · · Script 10 · · Length Definitions · · · (noun) keenness and forcefulness of thought or expression or intellect. Synonyms: incisiveness. · · Noun Definition 1 Synonyms · · · incisiveness · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079