Substantive/ˈsʌbstəntɪv/ Definition 1 of 3Pro Tip 1/3Real Importance Use 'substantive' to stress the significance of a topic over less crucial ones. The meeting focused on substantive concerns regarding our budget. Pro Tip 2/3Professional Tone 'Substantive' gives a formal tone, suitable for business or academic settings. Our substantive goals must align with the company's vision. Pro Tip 3/3Not Surface-level 'Substantive' implies depth, going beyond superficial aspects. She made a substantive contribution to the research project.