adjective
bogus
BOH-guhs/ˈbəʊɡəs/
False or not genuine.
The bogus gold bar reveals ordinary brick beneath its foil.

Etymology
Bogus first described counterfeit money, apparently taking its name from a counterfeiter’s apparatus. That association with fraudulent imitation broadened to anything sham or not genuine; its deeper origin remains uncertain.
In context
hackers had busted into its computer system and stolen another 104,000 taxpayer identities which so far have been used to collect nearly $50 million in bogus refunds
More examples
- He presented a bogus certificate.
- The teenagers thought the new restriction was bogus.
- She recognized the signature as bogus.
Forms
bogus
Similar words
- fake
- Fake is the ordinary broad term.
- counterfeit
- Counterfeit suggests deliberate imitation intended to deceive.