(1):

(a.) Cultivated; not indigenous; not of spontaneous growth; as, artificial grasses.

(2):

(a.) Made or contrived by art; produced or modified by human skill and labor, in opposition to natural; as, artificial heat or light, gems, salts, minerals, fountains, flowers.

(3):

(a.) Artful; cunning; crafty.

(4):

(a.) Feigned; fictitious; assumed; affected; not genuine.