1. the quality or state of having or showing deep understanding and clear perception of things
Usage: abstract noun; typically uncountable

Examples

• The insightfulness of her analysis impressed the entire research team.
• His insightfulness about human nature made him an excellent therapist.
• The book's insightfulness lies in its ability to connect historical events to modern problems.
• We appreciated the insightfulness of the professor's comments during the lecture.
• Her insightfulness helped the company identify problems before they became serious.
• The insightfulness demonstrated in the report suggested careful observation and reflection.