substitutable

From substitute + -able.

substitutable (comparative more substitutable, superlative most substitutable)

1. Capable of being used as a substitute; valid as a replacement or alternate item.

   Stevia is not substitutable for sugar in baking: the recipes won't work; they taste terrible.

2. Capable of being substituted.

• nonsubstitutable
• unsubstitutable

substitutable (plural substitutables)

1. Something that can be substituted for something else; a viable replacement.