spurious
Definitions
Not being what it purports to be; false or fake.
Arising from a reason that is not valid or well-founded.
Examples
The detective quickly dismissed the anonymous tip as a spurious attempt to derail the investigation.
Correlation does not imply causation, and many people fall for spurious relationships between unrelated data points.
The historian uncovered several spurious documents that had been forged to support a false claim to the throne.