incisive
UK[ɪnˈsaɪsɪv]US[ɪnˈsaɪsɪv]
adj
(of a person or mental process) intelligently analytical and clear-thinking.
adj
(of an action) quick and direct.
Morpheme Breakdown
in
cis
ive
in
into
cis
cut
ive
adjective suffix
Etymology
the word 'incisive' has a sharp etymological edge, originating from the latin verb 'incidere', meaning 'to cut into'. this verb itself is composed of 'in-' (into) and 'caedere' (to cut, strike). the past participle stem of 'incidere' is 'incis-', which forms the basis of the english word. the suffix '-ive' was added to create an adjective. the literal meaning of 'cutting into' evolved metaphorically to describe mental sharpness—the ability to penetrate to the heart of a matter with clarity and analytical precision, much like a physical incision cleanly separates material.
Analysis
Structure: in (into) + cis (cut) + ive (adjective suffix)
in- (latin prefix, meaning 'into'); cis- (latin root, from the verb 'caedere', meaning 'to cut'); -ive (latin suffix, forming adjectives meaning 'having the nature of').
Examples
the critic's incisive analysis revealed the film's underlying flaws.
she asked an incisive question that got straight to the core of the problem.
his writing is known for its incisive wit and keen observations.