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.

Everyone you speak to about Peters says the same words: meticulous, diligent, thorough.

From BBC • Mar. 29, 2026

I had to be more diligent about closing windows on the Neo.

From The Wall Street Journal • Mar. 14, 2026

She was particularly diligent about checking for accuracy.

From The Wall Street Journal • Feb. 26, 2026

“This will hit unevenly,” Lau added, noting that big players have been diligent with recording Harmonized Tariff Schedule codes for their imports.

From MarketWatch • Feb. 20, 2026

The diligent students would do well to begin tonight memorizing his book on colds and fevers.

From "The Woman Warrior" by Maxine Hong Kingston

Vocabulary lists containing diligent

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