Antonyms of adj judicious

1 sense of judicious

Sense 1
judicious, wise, heady -- (marked by the exercise of good judgment or common sense in practical matters; "judicious use of one's money"; "a wise decision")

INDIRECT (VIA prudent) -> imprudent -- (not prudent or wise; "very imprudent of her mother to encourage her in such silly romantic ideas"; "would be imprudent for a noneconomist to talk about the details of economic policy"- A.M.Schlesinger)

Similarity of adj judicious

1 sense of judicious

Sense 1
judicious, wise, heady -- (marked by the exercise of good judgment or common sense in practical matters; "judicious use of one's money"; "a wise decision")
       => prudent (vs. imprudent) -- (careful and sensible; marked by sound judgment; "a prudent manager"; "prudent rulers"; "prudent hesitation"; "more prudent to hide than to fight")