Antonyms of adj well-advised

1 sense of well-advised

Sense 1
well-advised (vs. ill-advised), advised -- (having the benefit of careful prior consideration or counsel; "a well-advised delay in carrying out the plan")

ill-advised (vs. well-advised), unadvised -- (without careful prior deliberation or counsel; "ill-advised efforts"; "it would be ill-advised to accept the offer"; "took the unadvised measure of going public with the accusations")

Similarity of adj well-advised

1 sense of well-advised

Sense 1
well-advised (vs. ill-advised), advised -- (having the benefit of careful prior consideration or counsel; "a well-advised delay in carrying out the plan")
       => considered -- (carefully weighed; "a considered opinion")
          Also See-> wise#1