| Word | Definitions | Synonyms |
|---|---|---|
| rugged | (adjective) sturdy and strong in constitution or construction; enduring | - |
| (adjective) having long narrow shallow depressions (as grooves or wrinkles) in the surface | Synonyms: furrowed | |
| (adjective) very difficult; severely testing stamina or resolution | Synonyms: tough | |
| (adjective) topographically very uneven | Synonyms: broken | |
| rugose | (adjective) of leaves; ridged or wrinkled | - |