perspicacity

Acuteness of perception, discernment, or understanding.

The state or character of being perspicacious.

Acuteness of discernment or understanding; penetration; sagacity: as, a man of great perspicacity.

Synonyms Sagacity, etc. (see judgment), insight.

The state of being perspicacious; acuteness of sight or of intelligence; acute discernment.

Acute discernment or understanding; insight.

The human faculty or power to mentally grasp or understand clearly.

Keen eyesight.

the capacity to assess situations or circumstances shrewdly and to draw sound conclusions

intelligence manifested by being astute (as in business dealings)