Adjective
Of the nature of fungi; spongy.
Growing suddenly, but not substantial or durable.
Source: Webster's dictionaryArise Evans had a fungous nose, and said, it was revealed to him, that the King's hand would cure him, and at the first coming of King Charles II into St. James's Park, he kissed the King's hand, and rubbed his nose with it; which disturbed the King, but cured him. John Aubrey