The word "oleaceous" refers to anything that is olive-like, such as the color or texture of olives or the plant family that includes olive trees. Synonyms for "oleaceous" might include woody, evergreen, or oleander-like, as oleanders are also a member of the oleaceae family. Other potential synonyms might include olive-toned, oily, or resinous, as these adjectives evoke the characteristics of olives. Additionally, one could use "oleiform" to refer to anything that is shaped like or similar to an olive, or "oleiferous" to describe anything that contains or produces oil, as olives are known for their high oil content.