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Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. adj. Constant in application or attention; diligent: an assiduous worker who strove for perfection. See Synonyms at busy.
  2. adj. Unceasing; persistent: assiduous research.

Century Dictionary and Cyclopedia

  1. Constant in application; attentive; devoted: as, a person assiduous in his occupation; an assiduous physician or nurse.
  2. Constant; unremitting: applied to actions.
  3. Synonyms Sedulous, diligent, active, busy, constant, patient, persevering, laborious, unceasing, indefatigable, untiring. See assiduity.

Wiktionary

  1. adj. Hard-working, diligent or regular (in attendance or work); industrious.

GNU Webster's 1913

  1. adj. Constant in application or attention; devoted; attentive; unremitting.
  2. adj. Performed with constant diligence or attention; unremitting; persistent.

WordNet 3.0

  1. adj. marked by care and persistent effort

Etymologies

  1. From Latin assiduus, from assidēre, to attend to : ad-, ad- + sedēre, to sit; see sed- in Indo-European roots.

Examples

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Comments

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  • reesetee Really? I always thought it sounded like the taste of lemons. May 1, 2011

  • blafferty This word sounds like tiny waves taking over a beach. Apr 30, 2011

  • jwjarvis The assiduous merchant, the laborious husbandman, the active mechanic, and the industrious manufacturer - all orders of men look forward with eager expectation and growing alacrity to the pleasing reward of their toils. Sep 16, 2010

  • yarb Citation on fungus garden. Dec 5, 2008

‘assiduous’ has been looked up 3607 times, loved by 25 people, added to 120 lists, commented on 4 times, and has a Scrabble score of 10.