Synonyms for Materialistic (same or very similar meaning)
WordNet sense 1 (marked by materialism):
mercenary, worldly-minded
WordNet sense 2 (conforming to the standards and conventions of the middle class):
bourgeois, conservative
WordNet sense 3 (occupying a socioeconomic position intermediate between those of the lower classes and the wealthy):
middle-class
From the ODE community, based on WordNet
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