| adj. |
| [1] |
arduous
,
arduous
,
laborious
,
backbreaking
,
grueling
,
tough
,
hard
,
gruelling
,
hard
,
difficult
,
strenuous
,
heavy
,
laborious
,
burdensome
,
onerous
,
operose
,
punishing
,
back-breaking
,
exhausting
,
fatiguing
,
tiring
,
enervating
,
wearying
,
draining
|
|
