Irregular comparatives (meilleur, mieux, pire...)

Ce restaurant est meilleur, et en plus il cuisine mieux que l'ancien.This restaurant is better, and on top of that it cooks better than the old one.

Comparative adjectives and superlatives already introduced meilleur (for bon), mieux (for bien), and pire (for mauvais, often preferred for a stronger, more evaluative tone) as irregular forms that skip plus. This article goes a step further: telling meilleur and mieux apart, adding the fourth, more formal member of the family — moindre — and flagging the doubling mistake these forms invite.

Quick shortcut: meilleur(e)(s) is an adjective (agrees with a noun), mieux is an adverb (never agrees). Neither ever takes plus in front — plus meilleur and plus mieux are both wrong, since the irregular form already is the comparative.

The full irregular family, at a glance

Mauvais and petit also have ordinary regular comparatives, plus mauvais and plus petit, still very much in everyday use — see the sections below for when each option fits.

Meilleur is an adjective, mieux is an adverb

This is the single most common mix-up with these forms, because English "better" covers both jobs at once. In French, the two stay grammatically separate:

• Meilleur(e)(s) describes a noun, exactly like any adjective, and agrees with it:
  • Ce vin est meilleur que l'autre. (This wine is better than the other.)
  • Cette recette est meilleure. (This recipe is better.)
• Mieux describes a verb (how an action is done) or stands on its own, and never changes form:
  • Elle chante mieux que moi. (She sings better than me.)
  • Ça va mieux aujourd'hui. (It's going better today.)

✅ Ce restaurant cuisine mieux., never ❌ Ce restaurant cuisine meilleur. — cuisine is a verb here, so it needs the adverb.

C'est mieux is a common evaluative expression on its own, with no specific noun in view ("that's better", "it's for the best"): Tu devrais partir tôt, c'est mieux. C'est meilleur instead comments on the quality (often the taste) of a specific thing just mentioned: Goûte cette version, c'est meilleur.

Never double them up with plus

Meilleur, mieux, pire, and moindre are already comparative forms on their own — adding plus in front doesn't intensify them, it just produces an ungrammatical redundancy:

• ❌ Ce gâteau est plus meilleur. → ✅ Ce gâteau est meilleur.
• ❌ Il joue plus mieux qu'avant. → ✅ Il joue mieux qu'avant.
• ❌ C'est le plus meilleur restaurant de la ville. → ✅ C'est le meilleur restaurant de la ville.
• ❌ La situation est plus pire. → ✅ La situation est pire.

Moindre: the formal, abstract "lesser"

Moindre is the irregular comparative of petit, but it belongs to a distinctly more formal register, mostly for abstract or figurative smallness — importance, degree, intensity, quantity. For everyday physical size, plus petit stays the normal, default choice — moindre is a possible formal alternative even there, but it's not the everyday pick:

• C'est un problème de moindre importance. (It's a matter of lesser importance.)
• Le risque est moindre cette fois. (The risk is lower this time.)
• but: Cette chambre est plus petite que l'autre. (This room is smaller than the other.) — physical size, regular form

Moindre belongs to a noticeably more formal register than meilleur, mieux, or pire, and shows up constantly in one fixed idiom worth learning as a whole phrase: sans la moindre / pas la moindre + noun, meaning "without the slightest..." / "not the slightest...":

• Je n'ai pas la moindre idée. (I have no idea / not the slightest idea.)
• Il l'a fait sans la moindre hésitation. (He did it without the slightest hesitation.)

A few fixed expressions

These irregular forms show up in some common set phrases worth learning as whole units:

• Tant mieux ! ("So much the better!" / "Great!") and tant pis ! ("Too bad!" / "Oh well!") — fixed reactions, always in this exact form.
• Au mieux ("at best") and au pire ("at worst") — framing a best- or worst-case outcome: Au pire, on prendra un taxi.
• De mieux en mieux ("better and better") — a steady improvement over time: Sa santé va de mieux en mieux.

Common mistakes

• ❌ Ce gâteau est plus meilleur. → ✅ Ce gâteau est meilleur. (meilleur already is the comparative)
• ❌ Elle cuisine meilleur. → ✅ Elle cuisine mieux. (a verb needs the adverb mieux, not the adjective meilleur)
• ❌ Cette valise est moindre que l'autre. → ✅ Cette valise est plus petite que l'autre. (an everyday, physical comparison like this calls for plus petite — moindre belongs to a more formal register, mostly for abstract smallness)
• ❌ Je n'ai pas la moindre doute. → ✅ Je n'ai pas le moindre doute. (doute is masculine, so it needs le — moindre itself has the same form for both genders, but the article in front of it still has to agree with the noun)

Quick check

Key takeaways

• Meilleur(e)(s) is an adjective and agrees with the noun it describes; mieux is an adverb and never changes form.
• C'est mieux is a general evaluative comment; c'est meilleur comments on the quality of a specific thing just mentioned.
• None of meilleur, mieux, pire, or moindre ever takes plus in front — they're already comparative forms on their own.
• Moindre is the more formal "lesser", mostly for abstract smallness (importance, degree, risk); plus petit stays the everyday, default choice for physical size. Sans/pas la moindre + noun is a common fixed idiom for "not the slightest...".
• A handful of fixed expressions are built on these forms and learned as whole phrases: tant mieux, tant pis, au mieux, au pire, de mieux en mieux.