sagacious

acutely insightful and wise

Of quick sense perceptions; keen-scented; skilled in following a trail.

Latin 'sagax' meaning keen or sharp

“Theoretically wise Lady Blandish had always thought the baronet; she was unprepared to find him thus practically sagacious.”

— George Meredith, Complete Project Gutenberg Works of George Meredith

Ifeoma, a sagacious librarian in Copenhagen, spotted the mayor's confused frown as he stared at the Dewey Decimal System. "Looking for something specific?" she asked with a smile. "A book on common sense," he mumbled, feeling a bit foolish under her keen gaze.

At dawn's first light on Manila Bay, Manon navigated the narrow alleys of Binondo, her eyes darting between the street signs and a tattered map. With a sagacious nod, she pointed to an ancient teahouse hidden behind a row of mango trees, where whispers of wisdom and steaming cups awaited.

“James Baskett, who portrays the sagacious dean of plantation workers, has both the benign appearance and mellifluous voice to make him the perfect spinner-of-tales.”