1. able to be used in place of something else; replaceable

Examples

• The generic brand medication is substitutable for the name brand.
• In this recipe, honey is substitutable for sugar.
• These parts are substitutable, so we can use either one.
• The coach found that no player was truly substitutable for the team captain.
• Margarine is substitutable for butter in most baking recipes.
• The company discovered that their product was easily substitutable by competitors.