Misfunction
Part of speech: verb
Definition: To function incorrectly; to malfunction
Malfunction
Part of speech: noun
Definition: Faulty functioning.Failure to function.
Part of speech: verb
Definition: To function improperlyTo fail to function
Example sentence: My father was an alcoholic. I come from a family of them, so it's genetic luck or malfunction that I've ended up with no enzyme that processes it. I literally can't drink.