"Personalistic" refers to anything that pertains to an individual or their personality. Some synonyms for this word include individualistic, character-driven, idiosyncratic, unique, and peculiar. "Individualistic" implies a focus on the particular qualities that make a given individual different from anyone else. "Character-driven" refers to a focus on someone's personality traits and how they might influence their decisions or actions. "Idiosyncratic" suggests something that is distinctive or unusual about an individual's approach to something. "Unique" implies a one-of-a-kind quality that makes someone or something stand out. Finally, "peculiar" means something that is different or unusual in a way that might seem strange to others.