arduous
/ˈɑrdʒuəs/
adjective
Involving or requiring strenuous effort; difficult and tiring.
an arduous journey
onerous,taxing,difficult,hard,heavy,laborious,burdensome,strenuous,vigorous,back-breaking,stiff,uphill,relentless,Herculean
adjective
Involving or requiring strenuous effort; difficult and tiring.
an arduous journey
onerous,taxing,difficult,hard,heavy,laborious,burdensome,strenuous,vigorous,back-breaking,stiff,uphill,relentless,Herculean
