What are the same meaning words as HAPPY?

Here are some words that have similar meanings to "happy," categorized by nuance:

General Happiness:

* Joyful

* Cheerful

* Delighted

* Glad

* Pleased

* Content

* Elated

* Jubilant

* Exuberant

* Thrilled

Happiness with a specific cause:

* Grateful

* Thankful

* Satisfied

* Fulfilled

* Ecstatic

* Blissful

Happiness as a state of being:

* Serene

* Peaceful

* Tranquil

* At ease

* Euphoric

Informal words:

* Merry

* Chuffed

* Tickled pink

* Over the moon

Words that express a lack of sadness:

* Cheer up

* Brighten up

* Lighthearted

The best word to use depends on the specific context and the nuance you want to convey.