Formal:
* நல்ல அனுபவம் (nalla anubavam) - This is the most literal translation and means "good experience."
* சிறந்த அனுபவம் (sirantan anubavam) - This means "excellent experience."
Informal:
* நல்லா இருந்தது (nalla irunthatu) - This literally translates to "it was good" and is a more casual way to say "nice experience."
* ரொம்ப நல்லா இருந்தது (romba nalla irunthatu) - This means "it was very good" and expresses a strong positive feeling.
* சூப்பரா இருந்தது (suppaa irunthatu) - This means "it was super" and is a very casual and enthusiastic way to say "nice experience."
Other options:
* மனநிறைவான அனுபவம் (mananirivaana anubavam) - This means "a fulfilling experience" and emphasizes the emotional impact of the experience.
* சுவாரஸ்யமான அனுபவம் (suvaarasyamaan anubavam) - This means "an interesting experience" and highlights the captivating nature of the experience.
Ultimately, the best way to say "nice experience" in Tamil depends on the specific situation and the level of formality you want to use.