Dorothea Dix

The fact is that, in all prisons everywhere, cruelties on the one hand and injudicious laxity of discipline on the other have at times appeared and will, at intervals, be renewed except the most vigilant oversight is maintained.

American Activist

Use 'injudicious' to imply a negative opinion about someone's decisions or actions.

Negative Implication

'Injudicious' often describes decisions or choices reflecting bad judgment, not general behavior.

Criticism of Decisions

'Injudicious' is moderately formal, so it's more common in written language than in casual speech.