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Definitions

laborious

[luh-bawr-ee-uhs] / ləˈbɔr i əs /
ADJECTIVE
hard, difficult
Synonyms
STRONGEST
arduous backbreaking burdensome onerous strenuous tiresome
WEAK
effortful fatiguing forced heavy herculean labored operose ponderous rough go stiff strained toilsome tough tough job wearing wearisome wicked
Antonyms
STRONGEST
easy facile
WEAK
effortless idle lackadaisical lazy reticent simple trivial
ADJECTIVE
hardworking
Synonyms
STRONGEST
assiduous painstaking
WEAK
active diligent indefatigable industrious operose persevering sedulous tireless unflagging
Antonyms
WEAK
easy effortless facile idle lackadaisical lazy reticent simple trivial

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.

“While we have tried to simplify the underlying concepts behind the Ontology model, building and implementing an Ontology in a large enterprise is a laborious process,” the analysts say.

From Barron's • Mar. 20, 2026

And sometimes, that extra bit of effort just seems too laborious.

From Salon • Feb. 26, 2026

This is more laborious, of course, but also more likely to fetch you that bigger paycheck.

From MarketWatch • Jan. 21, 2026

She wanted to digitise and streamline those laborious tasks into a piece of tech that she can view on her cellphone or computer.

From BBC • Jan. 19, 2026

Mr. Lewin gave a laborious sigh, gathering his papers into a pile.

From "The City Beautiful" by Aden Polydoros