Select the most appropriate antonym of the given word. SAGACIOUS

Explanation:

The meaning of the above-given words is-

Sagacious- of keen and farsighted penetration and judgment; discerning.

Ignorant- one who lacks knowledge.

Ingenious- skilled at inventing new ways to solve problems; clever.

Astute- having the ability to understand things clearly.

Prudent- one who is wise and cares and thinks for the future.

So, the word with the meaning opposite to ‘sagacious’ is ‘ignorant’.

Hence, the correct option is (D).