uphill · adjective /ʌpˈhɪl/Full view
an uphill battle/struggle/task
C2 something that is difficult to do and needs a lot of effort
Dictionary example:

I can lose weight but it's a real uphill struggle.

Learner example:

When this is the case, the families caring for them are faced with an uphill struggle, as it is difficult to reconcile the need for earning a living with the care of their relatives. (Certificate of Proficiency in English; C2; Greek)

uphill · adverb /ʌpˈhɪl/
C2 towards the top of a hill
Dictionary example:

We'd walked half a mile uphill.

Learner example:

She had not seen the lorry that made [its] way uphill and when she realized that she would crash right into it, it had been to[o] late to do something. (Certificate of Proficiency in English; C2; Dutch)

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