Assiduous

Practice This Word

Persistent; persevering; hard-working

adjective

Assiduous

Persistent; persevering; hard-working

adjective

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Imagine This

If you’re an office manager, don’t you like to hire an office assistant, who works very hard and diligently?

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Sounds Like

uh-SID-yoo-uhs

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Looks Like

sedulous

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Remember This

Assiduous is often used to describe sustained, careful effort rather than innate talent. It is closely related to 'diligent' and 'industrious' and is sometimes confused with 'insidious' due to similar spelling.

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Other Forms

assiduousnessnoun

assiduouslyadverb

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Connect With

diligent, industrious, sedulous, conscientious, persevering, assiduity

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Note

Use with people or their efforts (e.g., an assiduous student, assiduous work). Do not confuse with 'assiduity' (the noun form) which can refer to the quality of being assiduous.

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Study Deeper

Examples

She was an assiduous student, spending every evening studying and reviewing her notes.
The team showed assiduous attention to detail as they prepared the final report.

Synonyms

diligentindustrioussedulouspainstakingconscientiouspersevering

Antonyms

negligentlazycareless

Etymology

From Latin assiduus 'constant, persistent', from ad- 'toward' + sedēre 'to sit' (to sit by, attend closely).

Mnemonic

Always Seizing Small Inroads; Doing Useful, Outstanding, Unflagging Service.