artificial in WordNet English dictionary

1. contrived by art rather than nature
   "artificial flowers"; "artificial flavoring"; "an artificial diamond"; "artificial fibers"; "artificial sweeteners"
   artificial  unreal 
   
2. 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"
   artificial  contrived  hokey  stilted 
   
3. not arising from natural growth or characterized by vital processes
   artificial