Synonyms of assiduous

assiduous

adjective

ə-ˈsij-wəs 

as in diligent

involved in often constant activity

the fascinating sight of assiduous ants carrying food into the anthill

Synonyms & Similar Words

• diligent
• engaged
• busy
• employed
• active
• occupied
• industrious
• working
• preoccupied
• sedulous
• laborious
• immersed
• bustling
• hopping
• concentrating
• absorbed
• tied-up
• focused
• buzzing
• lively
• indefatigable
• tireless
• humming
• engrossed
• operational
• operating
• vigorous
• vibrant
• operative
• functioning
• animated
• going
• untiring
• focussed
• hardworking
• energetic
• intent
• flourishing
• thriving
• knee-deep
• astir
• functional
• swamped
• happening
• running
• living
• alive

Antonyms & Near Antonyms

• idle
• unemployed
• inactive
• free
• unoccupied
• latent
• passive
• quiescent
• sleepy
• slow
• unbusy
• dormant
• inert
• lifeless
• asleep
• dull
• dead
• inoperative
• nonoperating

Synonym Chooser

How is the word assiduous different from other adjectives like it?

Some common synonyms of assiduous are busy, diligent, industrious, and sedulous. While all these words mean "actively engaged or occupied," assiduous stresses careful and unremitting application.

assiduous practice

When is it sensible to use busy instead of assiduous?

Although the words busy and assiduous have much in common, busy chiefly stresses activity as opposed to idleness or leisure.

too busy to spend time with the children

When could diligent be used to replace assiduous?

The words diligent and assiduous are synonyms, but do differ in nuance. Specifically, diligent suggests earnest application to some specific object or pursuit.

very diligent in her pursuit of a degree

When would industrious be a good substitute for assiduous?

While in some cases nearly identical to assiduous, industrious implies characteristic or habitual devotion to work.

industrious employees

When can sedulous be used instead of assiduous?

The meanings of sedulous and assiduous largely overlap; however, sedulous implies painstaking and persevering application.

a sedulous investigation of the murder

Example Sentences

Recent Examples of assiduous

In recent years, Portland has become a byword for fashionable left-wing guff, including the notion that crime and homelessness are little more than voluntary social constructs that are better fought with kind words and substantial welfare spending than with the assiduous enforcement of the law. —The Editors, National Review, 23 May 2024

The irony of the term extension is that Disney, which pushed so hard to keep its own creations out of the public domain, is perhaps our most assiduous exploiter of, yes, the public domain. —Michael Hiltzik, Los Angeles Times, 26 Dec. 2023

Securing the best surviving print of a film often required assiduous detective work. —Joshua Hunt, New York Times, 29 Feb. 2024

Maestro centers on Cooper’s assiduous show of respect for Bernstein — Cooper meticulously enacts Bernstein’s rise to celebrity while sympathetically balancing his hotshot, wunderkind arrogance with the physical ravages of time. —Armond White, National Review, 22 Dec. 2023

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