Guttiferous is a relatively uncommon word with limited synonyms. The term describes anything that bears or produces gummy or resinous substances. Some possible alternatives to guttiferous might include words like resinous, sticky, or gum-bearing. Other options to consider could include wording like viscous, adhesive, or gooey, which could all be used to describe substances that stick or adhere to things. However, it is worth noting that none of these synonyms are perfect matches for guttiferous and may not fully convey the meaning of the word. As such, it may be best to use guttiferous directly when describing sticky or resinous substances.