A reductionist is someone who only considers the small parts of a problem and ignores the big picture. This can lead to problems because it's sometimes difficult to solve problems that are reduced down to a small number of pieces.
The reductionist approach to solving the problem was not successful.
The reductionist approach to solving the problem was based on the wrong assumptions.
NOUN
of or relating to the theory of reductionism
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The Generalist by the Reductionist.
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Lists like these are simplistic and reductionist.
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It shows the poverty of reductionist thinking.
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The first comment is absurd and reductionist.
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This is finer and finer reductionist thinking.
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Scientism is the religion of reductionist scientific materialism.
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Such a reductionist stance is equally as untenible as the prior.
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A reductionist theory is about the behavior of parts.
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CBT has a positivist reductionist philosophy.
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A contrast to the reductionist approach is holism or emergentism.