Gullery is a term that is often used to describe trickery or deceitful behavior. The word can also be used to describe someone who is foolish or gullible. There are several synonyms for the word gullery that can help to convey similar meanings. Some of these synonyms include deception, fraudulence, cunning, guile, and chicanery. Other synonyms that may be used to describe gullery include trickery, subterfuge, deceitfulness, duplicity, and artifice. These words can be used to describe someone or something that is attempting to deceive or manipulate others, whether for personal gain or for some other reason.