Definitions

reliable

[ri-lahy-uh-buhl] / rɪˈlaɪ ə bəl /

ADJECTIVE

trustworthy

Synonyms

STRONGEST

decent decisive dependable good honest positive predictable respectable safe sincere solid stable steady strong true

WEAK

candid careful certain come-through conscientious constant definite determined devoted faithful firm high-principled honorable impeccable incorrupt loyal okay proved reputable responsible righteous sound staunch steadfast sterling sure there tried tried-and-true true-blue true-hearted trusty unequivocal unfailing unimpeachable upright veracious

Antonyms

STRONGEST

bad broken corrupt dishonest evil false fraudulent inadequate indefinite intermittent soft uncertain undependable unfixed unreal unreliable unrespectable unstable unsteady unsuitable unsure untrustworthy vulnerable weak wobbly

WEAK

deceptive irresponsible

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.

Reliable VPNs are subscription-based, and prices may increase over time — many providers’ introductory rates jump significantly at renewal, so it’s worth checking what you’ll be paying after the first term.

From Salon • Jun. 10, 2026

"Reliable public planning depends not only on collecting data, but on understanding which children may remain least visible within the systems generating that data," Cubitt said.

From BBC • May 16, 2026

Reliable sea ice forecasts can support both traditional livelihoods and modern industries that operate in or near Arctic waters.

From Science Daily • Feb. 6, 2026

Reliable economic figures are hard to come by and a large portion of incomes are earned under the table in the informal sector.

From Barron's • Nov. 14, 2025

Reliable information about who could be trusted meant that small bands could expand into larger bands, and Sapiens could develop tighter and more sophisticated types of cooperation.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

Vocabulary lists containing reliable

TEKS ELAR Academic Vocabulary List (5th-7th grades)

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Positive Words to Describe a Person

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"My Favorite Chaperone," Vocabulary from the short story

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