Synonyms of assiduously

assiduously

adverb

1

as in actively

in a manner involving great or constant activity

trying assiduously to organize everything for the walkathon

Synonyms & Similar Words

• actively
• diligently
• vigorously
• busily
• laboriously
• industriously
• energetically
• tirelessly
• indefatigably

Antonyms & Near Antonyms

• idly
• sleepily
• inactively
• lifelessly

2

as in diligently

with great effort or determination

assiduously pursued a law degree when continuing to work full-time during the day

Synonyms & Similar Words

• diligently
• intensively
• hard
• intensely
• intently
• doggedly
• determinedly
• resolutely
• arduously
• sedulously
• continuously
• strenuously
• laboriously
• purposefully
• industriously
• slavishly
• vigorously
• actively
• mightily
• steadily
• thoroughly
• busily
• hardly
• zealously
• steadfastly
• energetically
• conscientiously
• vehemently
• amain
• briskly
• feverishly
• exhaustively
• painstakingly
• meticulously
• unremittingly
• ardently
• seriously
• dynamically
• attentively
• spiritedly
• tirelessly
• earnestly
• unrelentingly
• animatedly
• indefatigably
• willfully
• stubbornly
• untiringly
• ploddingly
• obstinately
• unabatedly
• unflaggingly
• wearilessly

Antonyms & Near Antonyms

• casually
• lazily
• wearily
• halfheartedly
• languidly
• desultorily
• listlessly
• sluggishly
• indolently
• tiredly
• lackadaisically
• shiftlessly
• spiritlessly

Example Sentences

Recent Examples of assiduously

The Austrian Alpine Club bills itself as the country’s largest youth organization, with more than seven hundred thousand members—close to a tenth of the population—assiduously steered toward skiing, hiking, camping, climbing. — William Finnegan, New Yorker, 29 June 2026

Zoo officials said Happy was assiduously cared for and had space for swimming, foraging and other natural behavior. — CBS News, 27 May 2026

Stoner fails to answer in class but soon rushes to the university library and begins assiduously reading Latin and Greek literature and adds courses in philosophy, ancient history, and English literature in lieu of the agricultural sciences. — Encyclopedia Britannica, 8 May 2026

The white political elite of the former Confederacy assiduously fought the reforms that liberated African Americans, particularly the right to vote, introducing poll taxes and literacy tests, as well as resorting to terrorism by the likes of the Ku Klux Klan to turn back the clock. — Clarence Page, Chicago Tribune, 3 May 2026

Since Richard Nixon was forced to resign, powerful people in both political parties have worked assiduously to ensure that their leaders would escape the consequences of their actions. — Adam Serwer, The Atlantic, 26 Feb. 2026

During these first weeks on the ground, Martha acquired routines and reams of notes from hospitals and prisons, assiduously compiling them every night back at the Hotel Florida, and a single friend, but no bolt of inspiration. — Literary Hub, 24 Feb. 2026

Additional pressure on Putin would have an impact, which is one reason his negotiators are working so assiduously to avert it. — Bloomberg Opinion, Twin Cities, 24 Feb. 2026

Steele visited Epstein at his Upper East Side town house in 2017, and assiduously cultivated the millionaire across a year of correspondence. — Brendan Ruberry, semafor.com, 16 Feb. 2026