diligent

[dil-i-juhnt] / ˈdɪl ɪ dʒənt /

ADJECTIVE

persevering, hard-working

Synonyms

STRONGEST

active assiduous attentive careful conscientious eager earnest indefatigable industrious painstaking persistent studious tireless

WEAK

busy constant eager beaver grind laborious occupied operose persisting pertinacious plugging sedulous steadfast unflagging unrelenting untiring

Antonyms

STRONGEST

careless disinterested idle ignorant inactive inattentive lazy neglectful thoughtless tired uncareful unconcerned unenthusiastic unscrupulous weary

WEAK

indifferent languid lethargic negligent

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.

In other cases, diligent taxpayers file extensions because they don’t have all the forms they need.

From MarketWatch • Jun. 8, 2026

"Luckily the keepers here are incredibly diligent, so they are noticing the subtle changes in an animal."

From BBC • Apr. 21, 2026

Indexing presumes general market efficiency: The counterparty to an active seller is an active buyer; both are confident, well-staffed and diligent.

From The Wall Street Journal • Mar. 27, 2026

“I was wild and in the streets, not diligent in any way about anything, but I really loved it.”

From Los Angeles Times • Mar. 25, 2026

He’s back out in the garage being diligent again.

From "Dry" by Neal Shusterman and Jarrod Shusterman

Vocabulary lists containing diligent

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