Deep-engraven is a term that is often used to describe something that has been carved or etched deeply into a surface. While this term is quite descriptive, there are other words that can be used to convey the same meaning. Some possible synonyms for deep-engraven include deeply carved, deeply etched, deeply incised, deeply cut, deeply imprinted, deeply inscribed, and deeply grooved. Each of these terms can be used to describe something that has been physically marked with depth and detail, and they can be used interchangeably with deep-engraven to add variety and nuance to your writing.