Sagacious means showing deep and shrewd wisdom. A sagacious judge, a sagacious remark, sagacious about people.
It joins wisdom to practical shrewdness, so a sagacious person reads a situation as well as a book. The Latin root is keen-scented, and it was used of hounds before it was used of people.
1adjectivesagaciousShowing deep and shrewd wisdom.
“His sagacious reading of the market saved the firm twice.”
sagacious is a quality.
Latin sagax means keen-scented or quick to perceive, and was used of hunting dogs before it was used of judgement.
Latin
sagāx
English, today
sagacious
Coined between 1600 and 1610. Borrowed from Latin sagāx, -acious.
Etymology from Wiktionary, CC BY-SA