Fungiform is an adjective that pertains to something that resembles or pertains to a mushroom. There are a number of different synonyms that can be used instead of the word "fungiform". Some of the most common synonyms include mushroom-shaped, cup-shaped, knob-shaped, and button-shaped. Other synonyms may include umbrella-shaped, cap-shaped, and toadstool-shaped. Depending on the context in which "fungiform" is used, there may also be other appropriate synonyms that can be used. For example, if the word is being used to describe a growth on the skin, synonyms such as bulbous, protuberant, and protrusive may be more appropriate.