* Fine: This word implies a high standard of quality or excellence.
* Fabulous: This word suggests something exceptional and amazing.
* Fantastic: This word emphasizes something extraordinary and wonderful.
* First-rate: This describes something of the highest quality.
* Favorable: This implies something positive or beneficial.
* Flawless: This suggests perfection and without any defects.
* Formidable: This emphasizes power and strength, which can be considered a "good" thing in some contexts.
The best synonym will depend on the context of what you are trying to convey.