hard-won

US /ˈhɑːrdˌwʌn/
UK /ˈhɑːrdˌwʌn/
"hard-won" picture
1.

obtained only after a great deal of effort and difficulty

:
•
It was a hard-won victory for the team.
•
Her success was the result of hard-won experience.
:
arduousstrenuousdemandingchallengingtoilsome
:
hardhard diskhard candyhard tickhard palatehard drivehard-working