arduousadjective
uk/ˈɑː.dʒu.əs/us/ˈɑːr.dʒu.əs/difficult, needing a lot of effort and energy:
an arduous climb/task/journey
Thesaurus: synonyms and related words
Complicated and difficult to do
- advanced
- ambitious
- another
- as much as you can do idiom
- at a push idiom
- fiendish
- fierce
- formidable
- get blood out of/from a stone idiom
- gruelling
- murky
- picnic
- problematic
- punishing
- rigorous
- schlep
- uphill
- vexed
- wearing
- wearying
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arduously
adverb uk/ˈɑː.dʒu.əs.li/us/ˈɑːr.dʒu.əs.li/
arduousness
noun [ U ] uk/ˈɑː.dʒu.əs.nəs/us/ˈɑːr.dʒu.əs.nəs/