Antonyms of adj artificial

3 senses of artificial

Sense 1
artificial (vs. natural), unreal -- (contrived by art rather than nature; "artificial flowers"; "artificial flavoring"; "an artificial diamond"; "artificial fibers"; "artificial sweeteners")

natural (vs. artificial) -- (existing in or produced by nature; not artificial or imitation; "a natural pearl"; "natural gas"; "natural silk"; "natural blonde hair"; "a natural sweetener"; "natural fertilizers")
        => unbleached, uncolored, undyed -- (not artificially colored or bleached; "unbleached blonde hair"; "her hair is uncolored"; "undyed cotton")

Sense 2
artificial, contrived, hokey, stilted -- (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")

INDIRECT (VIA affected) -> unaffected -- (free of artificiality; sincere and genuine; "an unaffected grace")

Sense 3
artificial -- (not arising from natural growth or characterized by vital processes)

INDIRECT (VIA inorganic) -> organic -- (being or relating to or derived from or having properties characteristic of living organisms; "organic life"; "organic growth"; "organic remains found in rock")

Similarity of adj artificial

3 senses of artificial

Sense 1
artificial (vs. natural), unreal -- (contrived by art rather than nature; "artificial flowers"; "artificial flavoring"; "an artificial diamond"; "artificial fibers"; "artificial sweeteners")
       => arranged, staged -- (deliberately arranged for effect; "one of those artfully staged photographs")
       => bionic -- (having particular physiological functions augmented or replaced by electronic or electromechanical components)
       => bleached, colored, coloured, dyed -- ((used of color) artificially produced; not natural; "a bleached blonde")
       => cardboard, unlifelike -- (without substance; "cardboard caricatures of historical figures")
       => celluloid, synthetic -- (artificial as if portrayed in a film; "a novel with flat celluloid characters")
       => conventionalized, conventionalised, stylized, stylised -- (using artistic forms and conventions to create effects; not natural or spontaneous; "a stylized mode of theater production")
       => dummy -- (having the appearance of being real but lacking capacity to function; "a dummy corporation")
       => ersatz, substitute -- (artificial and inferior; "ersatz coffee"; "substitute coffee")
       => factitious -- (not produced by natural forces; "brokers created a factitious demand for stocks")
       => fake, false, faux, imitation, simulated -- (not genuine or real; being an imitation of the genuine article; "it isn't fake anything; it's real synthetic fur"; "faux pearls"; "false teeth"; "decorated with imitation palm leaves"; "a purse of simulated alligator hide")
       => man-made, semisynthetic, synthetic -- (not of natural origin; prepared or made artificially; "man-made fibers"; "synthetic leather")
       => near -- (closely resembling the genuine article; "near beer"; "a dress of near satin")
       => painted -- (lacking substance or vitality as if produced by painting; "in public he wore a painted smile")
          Also See-> counterfeit#1, imitative#3; unreal#1

Sense 2
artificial, contrived, hokey, stilted -- (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")
       => affected (vs. unaffected), unnatural -- (speaking or behaving in an artificial way to make an impression)

Sense 3
artificial -- (not arising from natural growth or characterized by vital processes)
       => inorganic (vs. organic) -- (lacking the properties characteristic of living organisms)