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.

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

There was no diligent retailer in the Philippines who realized they overcharged you for an eBay or Amazon purchase you had forgotten you made years ago, and miraculously wanted to make you whole.

From MarketWatch • Mar. 25, 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

Gauci suggests the "quite remarkable" notebook suggests Geisel had been "studious" and was doing "diligent work".

From BBC • Mar. 2, 2026

No more, the cool gray sift of days, the diligent waiting for the future to trickle forth.

From "Strange the Dreamer" by Laini Taylor

Vocabulary lists containing diligent

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