hilly
adj. B1 Intermediate US //ˈhɪɫi// UK //hˈɪli// hilly
adj. having many hills. You use this to describe land that is not flat and goes up and down a lot.
adj. characterised by an abundance of hills; having a surface marked by many natural elevations.
The city is very hilly, so walking can be tiring.
The race is particularly challenging because the hilly terrain requires runners to constantly adjust their pace.
The region's hilly landscape provides excellent drainage for the vineyards, though it makes the use of heavy harvesting machinery nearly impossible.
Usage
Typically used attributively before a noun or predicatively after a linking verb like 'be' or 'become'.