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adj. hill·i·er, hill·i·est
1. Having many hills.
2. Similar to a hill; steep.

hill′i·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈhɪl i)

adj. hill•i•er, hill•i•est.
1. full of hills; having many hills.
2. resembling a hill; elevated; steep.
hill′i•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.hilly - having hills and crags; "hilly terrain"
rough, unsmooth - having or caused by an irregular surface; "trees with rough bark"; "rough ground"; "rough skin"; "rough blankets"; "his unsmooth face"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


adjective mountainous, rolling, steep, undulating The areas are hilly and densely wooded.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
كثير التِلال


[ˈhɪlɪ] ADJ (hillier (compar) (hilliest (superl))) [terrain] → montañoso, accidentado; [road] → con fuertes pendientes
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005


[ˈhɪli] adj [region, area] → vallonné(e); [ground] → vallonné(e)
a 40-km march across boggy, hilly ground → une marche de 40 km sur terrain bourbeux et vallonné
Collins English/French Electronic Resource. © HarperCollins Publishers 2005


adj (+er)hüg(e)lig; (higher) → bergig
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007


[ˈhɪlɪ] adj (-ier (comp) (-iest (superl))) → collinoso/a, montagnoso/a
this road is very hilly → questa strada è un continuo saliscendi
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995


1. noun a piece of high land, smaller than a mountain. We went for a walk in the hills yesterday.
2. a slope on a road. This car has difficulty going up steep hills.
ˈhillock (-lək) noun
a small hill.
ˈhilly adjective
having many hills. hilly country.
ˈhillside noun
the side or slope of a hill. The hillside was covered with new housing.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
As they advanced the ground became rougher and hillier, for there were no farms nor houses in this country of the West, and the ground was untilled.
The further shore of the sea revealed a much narrower strip of land between the cliffs and the water than upon the western side; but it was a hillier and more open country.
Robert and Barbara Hillier in recognition of a gift from the couple that is the largest donation in the institution's history.
Pc Jonathon Hillier told Birmingham Crown Court he had acted reasonably and lawfully because he feared he would be assaulted.
It will stand in front of the Theatre Royal Plymouth, which commissioned Joseph Hillier to create the work.
Lee Hillier was driving a Seat Leon on the A469 near Hengoed on January 11, 2019, when he lost control of the car, crossed the road and hit an oncoming Volkswagen van.
Messenger, depicting "a young, powerful woman", will be unveiled next year in front of the Theatre Royal Plymouth, which commissioned Joseph Hillier to create the work.
PC Jonathon Hillier has been charged in connection with an incident during which a man was arrested for an alleged public order offence at Kingstanding, Birmingham, on February 22 this year.
That has undermined parents' ability to make informed decisions, said Public Accounts Com-mittee chair Meg Hillier.
Visitors will be greeted by a specially-commissioned exhibition from award-winning artist Joseph Hillier in collaboration with dancers Lizzie J Klotz and Maria Vincentelli.
A final design, said Bev Hillier, the city's manager of planning services, will bring a more cohesive look to the waterfront, creating a stronger link between it and the nearby downtown.