be incisive, tospeakorthinkinasharp,clear,effectiveway
incisive wit, humorthatissharp,clever,andquick
Word Origin
Language
Latin
Original word
incīsus
Word parts
in- (into) + caedere (to cut)
Originally meant
cut into; sharply cut
Background
It comes from Latin words connected with cutting. In English, the idea of a physical cut became a mental one: speech, questions, and thinking that seem to cut straight to the heart of something.