General opposites:
* Désagréable: This is the most direct opposite, meaning unpleasant or disagreeable.
* Désagréable: This is another option, meaning unpleasant or disagreeable.
* Mauvais: This means bad or unpleasant.
* Dépitante: This means discouraging, depressing, or disheartening.
* Repoussant: This means repulsive or disgusting.
Specific opposites depending on the context:
* If "agréable" refers to a person's character: désagréable, désagréable, ou antipathique.
* If "agréable" refers to a place or a situation: désagréable, désagréable, ou désagréable.
* If "agréable" refers to a feeling: désagréable, désagréable, ou désagréable.
The best opposite will depend on the specific situation and the nuance you want to convey.