insightfulness insightful • insigne · · · Info · Definitions · Synonyms · Characters · · insightfulness · · Text Latin · · Script 14 · · Length 4 · · Syllables Definitions · · · (noun) shrewdness shown by keen insight. Synonyms: acumen. · · Noun Definition 1 Synonyms · · · acumen · · Synonym 1 Characters · · e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 h latin small letter h U+0068 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 u latin small letter u U+0075