- Synonyms
-
difficult, hard
not easy; requiring great physical or mental effort to accomplish or comprehend or endure
-
arduous, backbreaking, grueling, gruelling, hard, heavy, laborious, operose, punishing, toilsome
characterized by effort to the point of exhaustion; especially physical effort
-
dragging
marked by a painfully slow and effortful manner
-
exhausting, tiring, wearing, wearying
producing exhaustion
-
heavy, labored, laboured
requiring or showing effort
-
labor-intensive, labour-intensive
requiring a large expenditure of labor but not much capital
-
leaden, plodding
(of movement) slow and laborious
-
Sisyphean
both extremely effortful and futile
-
arduous, straining, strenuous
taxing to the utmost; testing powers of endurance
