not natural or real; made by humans

fake; imitation

not genuine

counterfeit

something made like another

duplicate, imitation

(to make) (something) made or done in imitation of another thing in order to deceive

fake, simulated

not real; something made or done like something else

simulation, substitution

a piece of microfilm

copy

not real or genuine; to make fun of (a person, way of speaking etc) (especially by copying in an unkind or disrespectful way)

artificial, fake

to pretend (to be in the condition mentioned)

artificial, counterfeit

false; not genuine

counterfeit, fake

a person or thing taking the place of, acting for, another

alternative

not authentic

counterfeit, fake

not natural or normal

not regular; artificial