schematicEnglishOxford American Thesaurusschematic adjective 1 this concept is shown in schematic form in Figure 1: simplified; diagrammatic, representational, illustrative, graphic, delineative; symbolic. 2 his rather schematic notions of what marriage can be: simplistic, oversimplified, oversimple, formulaic, formularized, unimaginative; facile, shallow.