plus mauvais

You usually follow this phrase with the word que. This creates the 'than' part of your comparison. The basic structure is: [Thing A] + [Verb] + plus mauvais + que + [Thing B]. Remember that mauvais must match the gender of the subject. If you talk about a car (feminine), use plus mauvaise. If you talk about cars (plural), use plus mauvaises. It is like a puzzle where pieces must fit.

Use this when you are judging something tangible. It is perfect for food that tastes bad. Use it for a movie that was a letdown. It works well for the weather when it rains more than yesterday. You will hear it at the market or in restaurants. It is great for sharing a negative opinion with friends. If you are a bit of a critic, this is your phrase.

Do not use this for abstract situations or feelings. For things like 'the situation is worse,' French people prefer pire. plus mauvais is mostly for physical quality or skills. Also, do not use it for 'the worst'. That requires an extra word: le plus mauvais. Avoid using it if you want to be extremely polite. Comparing things negatively can sometimes sound a bit blunt or rude.

French culture often values critical analysis and honest opinions. Being a 'râleur' (a grumbler) is almost a national hobby in France. Complaining about the quality of coffee or bread is socially acceptable. Using plus mauvais shows you have standards and taste. It is not always seen as being negative. It is often seen as being discerning and observant. It is part of the art of conversation.

You can add bien to say 'much worse'. Use bien plus mauvais for extra emphasis. You can also use encore plus mauvais for 'even worse'. If you are comparing girls or feminine objects, use plus mauvaise. For groups of things, use the plural plus mauvais or plus mauvaises. These small changes help you sound more like a local. It keeps your French flexible and natural.