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arduous

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(ar-du-ous) 3 syllables
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Definition

adjective. requiring great exertion; laborious; difficult

Example Sentence

He prepared for weeks to undertake the arduous climb.

Synonyms

hard; serious; tall; tough; uphill

Antonyms

easy

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arduous
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Rhymes

  • arduous
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arduous

[AR-joo-us]

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