Unartificial refers to something that is natural or not man-made. Antonyms for unartificial include fabricated, synthetic, artificial, fake and manufactured. Fabricated refers to something that is created to deceive or mislead, while synthetic refers to something that is made by combining different substances. Artificial, meanwhile, refers to something that is not natural, while fake refers to something that is not genuine or true. Finally, manufactured refers to something that is made in a factory or assembly line. These antonyms for unartificial highlight the contrast between natural and man-made, illustrating the importance of recognizing the difference between the two in our daily lives.