Synonyms:
- adverse,
- antagonistic,
- conflicting,
- contrary,
- counter,
- counteractive,
- detrimental,
- difficult,
- draining,
- exhausting,
- fatiguesome,
- fatiguing,
- grueling,
- hard,
- harmful,
- hostile,
- in opposition,
- inimical,
- killing,
- miserable,
- not easy,
- opposed,
- opposing,
- opposite,
- punishing,
- rigorous,
- sinister,
- straining,
- tiresome,
- tiring,
- toilsome,
- troublesome,
- troublous,
- trying,
- unfavorable,
- untoward,
- weariful,
- wearing,
- wearisome,
- wearying,
- wretched