ASSIDUOUSNESS Synonyms: 28 Similar and Opposite Words

assiduousness

noun

Definition of assiduousness

as in diligence

attentive and persistent effort with painstaking assiduousness investigators finally cracked the case of the stolen works of art

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Recent Examples of Synonyms for assiduousness

Noun

At the far end of the spectrum, a pre-launch fund calling itself Claude VC says agent teams will run sourcing, diligence, memo drafting and LP qualification.

— Josipa Majic Predin, Forbes.com, 22 Aug. 2026
For trusted journalists, diligence meant spending more time with the community.

— Danielle K. Brown, The Conversation, 20 Aug. 2026

Definition of diligence

Noun

While the Queen Mother was very fond of this Queen Victoria tiara and wore it with relative assiduity, her daughter only wore it once in public, on an official trip to Malta in November 2005.

— Ana Serrano, Glamour, 7 Dec. 2025
These indestructible treasures have always been buried in matter, awaiting the invention of scanning electron microscopes and scientists with enough assiduity to spend decades on end peering into their atomic eyes.

— Virginia Heffernan, WIRED, 21 Mar. 2023

Definition of assiduity

Noun

Castro will receive the Humanitarian Award for his 25-year-long career in the food industry as an executive chef, private chef, culinary instructor and restaurant owner.

— Isabelle Farina, Variety, 26 Aug. 2026
Fans, artists, and leaders across all industries are mourning the star whose relentless optimism, grace, and resilience was a shining light.

— Charisma Madarang, Rolling Stone, 26 Aug. 2026

Definition of industry

Noun

The opening up to the friendship with Renata, the attentiveness with Luis, and not being set on killing Negan are monumental changes for her.

— Dalton Ross, Entertainment Weekly, 17 Aug. 2026
Thanks to the controller’s attentiveness, a possible mid-air collision may have been prevented, especially if the pilots operating the individual planes thought the controller was giving them the same flight instructions.

— Natalia Senanayake, PEOPLE, 17 Aug. 2026

Definition of attentiveness

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assiduously

assiduousness

assign

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“Assiduousness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/assiduousness. Accessed 26 Aug. 2026.

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Synonyms of assiduousness

noun

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