grueling
adjective
US(also mainlyUKgruelling)us/ˈɡruː.ə.lɪŋ/uk/ˈɡruː.ə.lɪŋ/extremelytiringanddifficult, anddemandinggreateffortanddetermination:
Runners are takingpartin a grueling 100-mileracein themountainsabove Los Angeles.
Heeventuallywonthematchafter five grueling sets.
Complicated and difficult to do
- advanced
- ambitious
- ambitiously
- another
- arduous
- fierce
- formidable
- formidably
- get blood out of/from a stoneidiom
- grail
- obstinately
- onerous
- overdemanding
- painstaking
- picnic
- tricky
- tuff
- ultra-sensitive
- unresolved
- unsolved