what is meilleur
By Laura K. Lawless. Like bon and bien, meilleur and mieux can be confusing for French students. Meilleur is the comparative and superlative form of the adjective bon (good), while mieux is the comparative and superlative form of the adverb bien (well).When translating into English, there is no difference between meilleur and mieux, hence the confusion.eciding whether you need meilleur or mieux is essentially a question of deciding between bon and bien, but in a comparative or superlative construction.