The term "concretistic" refers to something that is excessively focused on concrete details or material objects. Some synonyms for this word include materialistic, material-focused, and object-oriented. Other possible options include literal-minded, practical, and tangible. These words all convey a similar meaning, emphasizing the importance of real, concrete things over abstract concepts or ideas. Depending on the context in which the word is used, other possible synonyms might include empirical, observational, or evidence-based. All of these words suggest an emphasis on things that can be seen, touched, or measured, rather than abstract or intangible concepts.