* "Unhappy" has a clear opposite: Happy
* There are many ways to express happiness: Joyful, cheerful, delighted, content, ecstatic, etc.
So, depending on how you define "opposite meaning," there are many ways to express the opposite of "unhappy."
Here's a way to think about it:
* Antonyms: "Happy" is the direct antonym of "unhappy."
* Synonyms: There are numerous synonyms for "happy," each with a slightly different nuance.
* Expressions: We can express happiness in many ways, through our actions, words, and even body language.
Let me know if you'd like me to explore some of these ways in more detail!