modifiable

transitive verb modified, modifying

1. to change or alter; esp., to change slightly or partially in character, form, etc.
2. to limit or reduce slightly; moderate: to modify a penalty
3. Gram. to limit the meaning of; qualify: “old” modifies “man” in “old man”
4. Linguis. to change the form of a morpheme to indicate grammatical relations or derivation

intransitive verb