mystérieux: French word forms
Declension of the adjective mystérieux 
mysterious, eerie
| singulier | pluriel | |
| masculin | mystérieux | mystérieux |
| féminin | mystérieuse | mystérieuses |
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French Verb Conjugation and Word Forms Online
PROMT.One helps you quickly check French word forms online. Enter a verb, noun, or adjective and get a table instantly: for verbs — forms by person, number, tense, mood, and auxiliary verb; for nouns and adjectives — forms by gender and number.
What the Table Shows
The service shows French verb conjugation, including regular, irregular, and commonly used forms, as well as noun and adjective forms by gender and number. It is useful for learning, translation, and quick grammar checks.
- French verb forms by person, number, tense, and mood.
- Main tenses and moods: présent, imparfait, futur, passé composé, conditionnel, subjonctif, impératif.
- The auxiliary verb used in compound tenses: avoir or être.
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French verb conjugation, as well as noun and adjective forms.
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