Artificial
WordNet
adjective
(1) 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"
(2) Contrived by art rather than nature
"Artificial flowers"
"Artificial flavoring"
"An artificial diamond"
"Artificial fibers"
"Artificial sweeteners"
(3) Not arising from natural growth or characterized by vital processes