Produced artificially rather than by a natural process.(adjective)
Lacking authenticity or genuineness; sham: speculators responsible for the factitious value of some stocks. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "factitious" in a sentence
"Munchausen s syndrome is one of group of conditions known as factitious disorders."
"It is in a class of disorders known as factitious disorders which involve "illnesses" whose symptoms are either self-induced or falsified by the patient ..."
"In that context I feel like it isn't the established word factitious, but rather a new one meaning "half-factual, half-fictional"."