gladness
joyful
joy
glee
bliss
delight
contentment
cheerfulness
happy, fabolous ,great fantastic
Some words with the root word "happy" include happiness, happily, and unhappy.
happiness
Elation is another word for happiness or joy. Some other words that you can use in place of happiness, or joy are blissful, and glad.
Glee, euphoria, joy, ecstasy, contentedness...
happiness, happy heart halo
sadness, happiness, dullness, hardness, sweetness, heaviness, lightness
There are dozens of words that use the suffix ness. Some of these are stiffness, sickness, illness, harshness, and evasiveness.
Some 'happy' nouns are:cheerdelightfungoodiesjoylovelinessmerrimentnicetiesplaypresentssunshinevacation
The Greek language has all the right words. The word is "HARA"
Depending on the level of happiness words such as glad, fortunate, ecstatic, cheerful and joyful may be used. In other circumstances words such as blissful, merry, playful, pleasant and perky may be used.
Happiness
happiness, satisfaction