Spurious (adjective)
بظاہر ٹھیک، جعلی، نقلی
not being what it purports to be; false or fake.
Example: “separating authentic and spurious claims”
Synthetic (adjective)
ترکیبی، انسان کی بنائی ہوئی، مصنوعی
(of a substance) made by chemical synthesis, especially to imitate a natural product.
Example: “synthetic rubber”