adjective
incisive
in-SIGH-siv/ɪnˈsaɪsɪv/
Showing clear, sharp, and direct understanding.
The analyst offers an incisive explanation, pointing out the common obstruction.

Etymology
Cutting into something became a metaphor for thought or expression that cuts sharply and clearly.
More examples
- His incisive questions expose the weakness in the plan.
- She offers an incisive account of the dispute.
Forms
incisive
Similar words
- penetrating
- Emphasizes reaching beneath the surface.
- astute
- Emphasizes shrewd judgment or perception.