fungally

This term is primarily restricted to technical, scientific, and medical registers. It is used to describe the mechanism of an infection or the specific biological behavior of a fungus, such as how it spreads or interacts with a host organism.

Because it is a specialized adverb, it is rarely encountered in casual conversation. In non-technical contexts, speakers typically prefer phrases like "caused by a fungus" or "in a fungal manner" to avoid the clinical tone of the word.