Reducible/rɪˈduːsəbl/ Definition 1 of 3Pro Tip 1/3Size Reduction Use 'reducible' to describe things that can become smaller in quantity or complexity. The document was too long, but thankfully, it was reducible. Pro Tip 2/3Abstract Concepts 'Reducible' is not only for physical objects, but also abstract ideas like arguments. Her lengthy argument is reducible to a simple statement. Pro Tip 3/3Ease of Resolution When a complex matter is 'reducible', it often implies it can be solved more easily. They found the reducible conflict easier to resolve.