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English definition of “uphill”

uphill

adjective, adverb uk   /ˌʌpˈhɪl/ us  
C2 leading to a higher place on a slope: an uphill climb running uphill
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Up and upwardMoving upwards
C2 needing a large amount of effort: It'll be an uphill struggle/battle/fight to get the new proposals accepted.
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Complicated and difficult to doDifficult to understand
(Definition of uphill from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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