Pseudo (adjective)

1. Not genuine, but having the appearance of being genuine.
2. False, counterfeit, sham, or pretended.

Origin:

From the greek word "pseudēs" meaning false or fake.

Examples:

1. The pseudo-scientific theory was discredited by experts.
2. The pseudo-intellectual posed as an expert, but was exposed as a fraud.
3. The pseudo-medicine was found to be ineffective and dangerous.
4. The pseudo-religion was a cult that preyed on vulnerable people.
5. The pseudo-artist's work was nothing more than a copy of the original.