Pronunciation: (är"tu-fish'ul),[key] —adj. 1. made by human skill; produced by humans (opposed to natural): artificial flowers. 2. imitation; simulated; sham: artificial vanilla flavoring. 3. lacking naturalness or spontaneity; forced; contrived; feigned: an artificial smile. 4. full of affectation; affected; stilted: artificial manners; artificial speech. 5. made without regard to the particular needs of a situation, person, etc.; imposed arbitrarily; unnatural: artificial rules for dormitory residents. 6. Biol.based on arbitrary, superficial characteristics rather than natural, organic relationships: an artificial system of classification. 7. Jewelry.manufactured to resemble a natural gem, in chemical composition or appearance. Cf. assembled, imitation (def. 11), synthetic (def. 6).