Definition of "assiduous" []

• Constant in application or attention; diligent: an assiduous worker who strove for perfection. See Synonyms at busy. (adjective)
• Unceasing; persistent: assiduous research. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Fine, click on the Google "News" tab – and you will be directed to a page of links where the word assiduous appears in news stories."
• "Andy Anson, 2018's chief executive, is described as assiduous about keeping the board informed."
• "Meanwhile the hottest debate in the local party is about the use of the word "assiduous" on our election leaflets."