synthetic /sɪnˈθɛtɪk/adjective 7noun 1forms 3 adjective7 •Produced by synthesis instead of being isolated from a natural source (but may be identical to a product so obtained). •Produced by synthesis, thought to have the same effect as its natural counterpart, but chemically different from it. •Of a smell, taste, or other sensory quality: artificial; perceptible as an unnatural taste. •Artificial, not genuine. •Of, or relating to synthesis. •Pertaining to the joining of bound morphemes in a word (compare analytic). •Of a language, having a grammar principally dependent on the use of bound morphemes to indicate syntactic relationships. noun1 •A synthetic compound.Only plastics and synthetics that cannot be recycled will end up in landfills, he said. — 2007 formssynthetics · more synthetic · most synthetic