IPA: /ˈtjuː.mə.loʊs/
KK: /tjuˈmuloʊs/
Describing a landscape that has many small hills or mounds.
The tumulose terrain made the hike more challenging but also more beautiful.
Tumulose is derived from "tumulus" (from Latin, meaning mound or hill) and the suffix "-ose" (meaning full of or characterized by). The word describes something that is full of mounds or characterized by mounds.
Think of 'tumulus' meaning mound, and remember that 'tumulose' refers to something that is full of mounds.