Formal/Neutral:
* Fabuloso/Fabulosa (masculine/feminine) - This is the most literal translation and works well in most situations.
* Maravilhoso/Maravilhosa (masculine/feminine) - This means "wonderful" or "amazing" and is a good alternative to "fabuloso."
Informal/Slangy:
* Incrível - This means "incredible" and can be used for something truly amazing.
* Demais - This literally means "too much" but is used informally to express something great or awesome.
* Show - This is a slang term that can be used for something fabulous or cool.
* Top - Another slang term meaning "great" or "fantastic."
Example sentences:
* "Essa festa foi fabulosa!" (That party was fabulous!)
* "O vestido dela é maravilhoso!" (Her dress is amazing!)
* "Esse filme é incrível!" (This movie is incredible!)
* "A comida estava demais!" (The food was awesome!)
Ultimately, the best word to use depends on the context and your desired level of formality.