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artificial
形容詞
The word operates on two distinct planes: the technical/material and the social/emotional. In a material sense, it describes things synthesized or manufactured to mimic nature. While often neutral (like 'artificial sweeteners'), it can carry a slight connotation of inferiority compared to the 'real' thing. In a behavioral context, it is almost always negative. It describes a performance of emotion—such as a smile or laugh—that feels forced, calculated, or fake. Unlike 'fake', which might imply a total lie, 'artificial' often suggests a polished but hollow imitation of sincerity.