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We found 20 dictionaries with English definitions that include the word arduousness: Click on the first link on a line below to go directly to a page where "arduousness" is defined. General (19 matching dictionaries) arduousness: Collins English Dictionary [home, info] arduousness: Vocabulary.com [home, info] arduousness: Merriam-Webster's Online Dictionary, 11th Edition [home, info] arduousness: Wordnik [home, info] arduousness: Cambridge Advanced Learner's Dictionary [home, info] arduousness: Wiktionary [home, info] arduousness: Compact Oxford English Dictionary [home, info] Arduousness, arduousness: Dictionary.com [home, info] arduousness: UltraLingua English Dictionary [home, info] Arduousness: Online Plain Text English Dictionary [home, info] arduousness: Webster's Revised Unabridged, 1913 Edition [home, info] arduousness: Rhymezone [home, info] Arduousness: AllWords.com Multi-Lingual Dictionary [home, info] arduousness: Webster's 1828 Dictionary [home, info] arduousness: Free Dictionary [home, info] arduousness: Mnemonic Dictionary [home, info] arduousness: WordNet 1.7 Vocabulary Helper [home, info] arduousness: LookWAYup Translating Dictionary/Thesaurus [home, info] arduousness: Dictionary/thesaurus [home, info] Business (1 matching dictionary) arduousness: Legal dictionary [home, info] (Note: See arduous for more definitions.)

Quick definitions from WordNet (arduousness) ▸ noun:  extreme effortfulness ▸ Also see arduous