General Synonyms:
* Adorable
* Charming
* Delightful
* Lovely
* Pretty
* Sweet
* Appealing
* Attractive
* Engaging
* Precious
* Beautiful
* Wonderful
* Nice
* Pleasant
More Specific Synonyms:
* For animals: adorable, precious, cuddly, fluffy
* For children: adorable, precious, cherubic, sweet
* For objects: adorable, charming, delightful, quaint, cute
* For people: charming, appealing, attractive, lovely
Informal Synonyms:
* Slang: adorable, precious, cute, awesome
* Internet slang: kawaii, adorable, OMG so cute!
Remember: The best synonym will depend on the context of your sentence. Consider what specific feeling you want to express and choose the word that best matches.