Antonyms of adj sapient

1 sense of sapient

Sense 1
perspicacious, sagacious, sapient -- (acutely insightful and wise; "much too perspicacious to be taken in by such a spurious argument"; "observant and thoughtful, he was given to asking sagacious questions"; "a source of valuable insights and sapient advice to educators")

INDIRECT (VIA wise) -> foolish -- (devoid of good sense or judgment; "foolish remarks"; "a foolish decision")

Similarity of adj sapient

1 sense of sapient

Sense 1
perspicacious, sagacious, sapient -- (acutely insightful and wise; "much too perspicacious to be taken in by such a spurious argument"; "observant and thoughtful, he was given to asking sagacious questions"; "a source of valuable insights and sapient advice to educators")
       => wise (vs. foolish) -- (having or prompted by wisdom or discernment; "a wise leader"; "a wise and perceptive comment")