General happiness:
* Être heureux/heureuse: This is the most common and literal translation, meaning "to be happy".
* Se sentir heureux/heureuse: This means "to feel happy" and emphasizes the feeling itself.
Specific emotions:
* Être joyeux/joyeuse: This means "to be joyful" and suggests a more lighthearted and lively happiness.
* Être content/contente: This means "to be content" and implies a sense of satisfaction and fulfillment.
* Être radieux/radieuse: This means "to be radiant" and expresses a very intense and visible happiness.
Using adverbs:
You can also use adverbs to modify the intensity of the feeling:
* Être très heureux/heureuse: To be very happy.
* Être extrêmement heureux/heureuse: To be extremely happy.
Example sentences:
* Je suis très heureux de te voir. (I'm very happy to see you.)
* Je me sens heureuse aujourd'hui. (I feel happy today.)
* Elle est radieuse après ses vacances. (She is radiant after her holidays.)
The best way to say "feel happy" in French depends on the specific situation and the emotion you want to express.