* Original: This contrasts the idea of copying something with creating something unique.
* Authentic: This emphasizes genuine and uncopied behavior.
* Independent: This focuses on acting on one's own accord, rather than following someone else.
* Unique: This emphasizes individuality and distinctness.
* Genuine: This emphasizes sincerity and authenticity.
The best antonym will depend on the specific meaning of "mimicked" in the sentence.