unauthentic
/ˌʌnəˈθɛntɪk/
adjective
- Not genuine, real, or true; fake.
- The museum discovered that the painting was unauthentic and returned it to the seller.
- The signature on the document was ruled unauthentic by the handwriting expert.
- She felt the smile on his face was unauthentic, hiding his true feelings.
Synonyms