Les+adjectifs+irréguliers

__Les adjectifs irréguliers__  Like verbs, there are many irregular adjectives in French that change before adding E, S, or ES, and some that don't add those letters at all. Here is a list of common families of irregular adjectives.

__1. Adjectives ending in -E __


 * =  || masculine singular ||= feminine singular ||= masculine plural ||= feminine plural ||
 * = triste ||= triste ||= triste ||= tristes ||= tristes ||

For adjectives that already end in E in their masculine form, no extra E is added for feminine. *An exception is adjectives that end in É - an extra E is added for feminine.

__2. Adjectives ending in -F__


 * =  ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">masculine singular ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">feminine singular ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">masculine plural ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">feminine plural ||
 * = <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">sportif ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">sportif ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">sportive ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">sportifs ||= <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">sportives ||

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">For these adjectives, the F changes to a V in feminine forms before the E is added.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">__3. Adjectives ending in -EUX__


 * || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine plural || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine plural ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">sérieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">sérieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">sérieuse || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">sérieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">sérieuses ||

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">For these adjectives, the X changes to an S in feminine forms before the E is added. Also, the masculine singular and plural forms are identical - no S is added.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">__4. Adjectives ending in -l/-n__ <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">
 * || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine plural || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine plural ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">gentil || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">gentil || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">gentille || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">gentils || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">gentilles ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">bon || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">bon || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">bonne || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">bons || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">bonnes ||

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">For these adjectives, the N or L is doubled in feminine forms before the E is added.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">__5. Other irregular adjectives__


 * || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine singular || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">masculine plural || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">feminine plural ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">beau || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">beau || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">belle || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">beaux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">belles ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">nouveau || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">nouveau || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">nouvelle || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">nouveaux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">nouvelles ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">vieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">vieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">vieille || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">vieux || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">vieilles ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">fou || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">fou || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">folle || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">fous || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">folles ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">blanc || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">blanc || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">blanche || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">blancs || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">blanches ||
 * <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">ce || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">ce || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">cette || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">ces || <span style="display: block; font-family: Arial,Helvetica,sans-serif; font-size: 130%; text-align: center;">ces ||

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">These adjectives don't follow a set pattern or have a family, but they are important to know.