The past tense of Mismatch is mismatched.
noun. ['mɪˈsmætʃ, ˈmɪˌsmætʃ'] a bad or unsuitable match.
1. Noun, singular or mass Because how do we as a habit anticipate a mismatch? 2. Verb, non-3rd person singular present Imitators occasionally mismatch these items.
verb. ['mɪˈsmætʃ, ˈmɪˌsmætʃ'] match badly; match two objects or people that do not go together.