factitious \fak-TISH-uhs\ (adjective) - 1 : Produced artificially, in distinction from what is produced by nature. 2 : Artificial; not authentic or genuine; sham.
"However, he had enough strength in him -- factitious no doubt -- to very nearly make an end of us, as you shall hear directly." -- Joseph Conrad, 'Heart of Darkness'
Factitious comes from Latin facticius, "made by art, artificial," from the past participle of facere, "to make."