The adj artificial has 3 senses (first 2 from tagged texts)
1. (4) artificial, unreal -- (contrived by art rather than nature; "artificial flowers"; "artificial flavoring"; "an artificial diamond"; "artificial fibers"; "artificial sweeteners")
2. (2) artificial, contrived, hokey, stilted -- (artificially formal; "that artificial humility that her husband hated"; "contrived coyness"; "a stilted letter of acknowledgment"; "when people try to correct their speech they develop a stilted pronunciation")
3. artificial -- (not arising from natural growth or characterized by vital processes)