acumen aculeus • acuminate · · · Info · Definitions · Synonyms · Characters · · acumen · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a tapering point. · · Noun Definition 1 (noun) shrewdness shown by keen insight. Synonyms: insightfulness. · · Noun Definition 2 Synonyms · · · insightfulness · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 m latin small letter m U+006D n latin small letter n U+006E u latin small letter u U+0075