adj
hilly
HIH-lee
adj
1
Having many hills; not flat.
"The road wound through hilly countryside."
"This part of the country is too hilly for growing wheat easily."
How to Use Hilly
Learner’s notesIn plain EnglishFull of hills — bumpy, uneven ground rather than flat land.
Word Forms
hillier comparative, hilliest superlative
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The road wound through _____ countryside.
Etymology
From Middle English hilly, from hill + -y.