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assiduously

American  
[uh-sij-oo-uhs-lee] / əˈsɪdʒ u əs li /

adverb

  1. with careful and consistent effort; diligently or tirelessly.

    The Department of Health is still working assiduously with the schools to prevent further spread of the disease.

  2. constantly; ceaselessly.

    He referred to the boys assiduously as “gentlemen.”


Other Word Forms

Etymology

Origin of assiduously

assiduous ( def. ) + -ly

Explanation

Something done assiduously is done with care and dedication. If you assiduously count your lemonade stand earnings, you tally up the dimes and quarters very carefully, possibly counting them twice to make sure you get it right. Diligence, care, thoroughness, precision — all of these describe what's needed to do something assiduously. It comes from the Latin word assiduus, which means "busy, incessant, continual, or constant." The people who shelf books at your local library do so assiduously — they take great care to put the books exactly where they belong in the stacks so that others can find them.

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Vocabulary lists containing assiduously

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But all talk of love and magic aside, she’s most interested in cold, hard data, collected by assiduously tracking how one’s moments are spent.

From The Wall Street Journal • May 8, 2026

They had assiduously saved the cash that came in from gifts and summer jobs, and it had compounded over time to reach a princely sum.

From MarketWatch • May 5, 2026

Dismissed by colleagues as a “clerical rat,” he assiduously studied the files whose handling was now his responsibility.

From The Wall Street Journal • Jan. 6, 2026

The problem is akin to that of an actor who works so assiduously on his own that by the time rehearsals arrive he only wants to perfect what he’s worked out on his own.

From Los Angeles Times • May 14, 2025

When he sits again, he assiduously avoids eye contact.

From "The Brightwood Code" by Monica Hesse

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