arduous backbreaking back-breaking grueling gruelling hard heavy laborious labourious punishing slavish strenuous toilsome
effortful effortful adj. 1. requiring great physical effort. Opposite of {effortless}. [Narrower terms: {arduous, backbreaking, back-breaking, grueling, gruelling, hard, heavy, laborious, labourious, punishing, slavish, strenuous, toilsome}; {exhausting, tiring, wearing, wearying}] Also See: {difficult}, {hard}. [WordNet 1.5]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • gruelling — grueling grueling, gruelling gruellingadj. 1. characterized by toilsome effort; requiring extreme physical or mental effort; as, a grueling campaign. Syn: arduous, backbreaking, back breaking, exhausting, gruelling, hard, heavy, laborious,… …   The Collaborative International Dictionary of English

  • grueling — grueling, gruelling gruellingadj. 1. characterized by toilsome effort; requiring extreme physical or mental effort; as, a grueling campaign. Syn: arduous, backbreaking, back breaking, exhausting, gruelling, hard, heavy, laborious, labourious,… …   The Collaborative International Dictionary of English

  • labourious — adj. 1. characterized by toilsome effort; same as {laborious}; British spelling. [Chiefly Brit.] Syn: arduous, backbreaking, back breaking, grueling, gruelling, hard, heavy, laborious, punishing, slavish, strenuous, toilsome. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • effortful — adj. 1. requiring great physical effort. Opposite of {effortless}. [Narrower terms: {arduous, backbreaking, back breaking, grueling, gruelling, hard, heavy, laborious, labourious, punishing, slavish, strenuous, toilsome}; {exhausting, tiring,… …   The Collaborative International Dictionary of English

  • exhausting tiring wearing wearying — effortful effortful adj. 1. requiring great physical effort. Opposite of {effortless}. [Narrower terms: {arduous, backbreaking, back breaking, grueling, gruelling, hard, heavy, laborious, labourious, punishing, slavish, strenuous, toilsome};… …   The Collaborative International Dictionary of English

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