Resinaceous is an adjective that is used to describe something that is related to resin or has the characteristics of resin. It can also refer to something that contains resins. Some synonyms for the word "resinaceous" are resinous, oily, balsamic, gum-like, and adhesive. Other synonyms for "resinaceous" can be sticky, viscid, viscous, and tenacious. The word "resinous" is probably the most commonly used synonym for "resinaceous". Resinous refers to anything that contains or has the nature of resin, such as trees, plants, or certain types of rock. In short, "resinaceous" is a word that describes something that is sticky, oily, or adhesive, while "resinous" refers to something that contains or has the character of resin.