The term "cucurbitaceous" typically refers to a family of plants that includes pumpkins, squash, and gourds. While this word may not be commonly used in everyday language, there are several synonyms that can be used instead. Some alternatives include "cucurbit", "gourd-like", "pumpkin-like", "squashy", or simply "related to the squash family". These synonyms can be useful when writing or speaking about plants in a more accessible and understandable way. Overall, while "cucurbitaceous" may have a specific scientific meaning, there are plenty of synonyms that can be used to convey the same idea in a more casual setting.