Formal:
* Mal vu: This is the most direct translation, literally meaning "badly seen." It's a neutral and formal way to express disapproval.
* Réprobé: This translates to "reprobated" and signifies strong condemnation. It implies a moral judgement.
Informal:
* Mauvais œil: This literally means "bad eye" and implies being looked at with suspicion or disdain. It's a common expression to describe someone who is disapproved of.
* Déplu: This means "displeased" and is used to indicate someone who is not well-received.
* Détesté: This means "hated" and is a strong expression for when someone is thoroughly disapproved of.
Other options:
* Fait l'objet d'un regard désapprobateur: This translates to "is the subject of a disapproving look" and is a more descriptive way to express disapproval.
* Attire des critiques: This means "attracts criticism" and is a more general way to say that someone is not well-regarded.
The best choice for you will depend on the specific context and the level of formality you require.