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.

Collins said the cover, which spans roughly 10 acres, is to ensure safe, reliable drinking water and to maintain the facility while the department considers long-term options to replace the floating cover method.

From Los Angeles Times • Apr. 22, 2026

McDonald’s is trying to rebuild its reputation as the cheapest reliable option, with what executives describe as “everyday affordable prices” rather than sporadic discounts.

From Barron's • Apr. 21, 2026

“The Western rare earth sector stands at a critical inflection point, as governments and strategic industries urgently seek reliable sources of critical rare earths — particularly scarce heavy rare earths.”

From MarketWatch • Apr. 20, 2026

The military wanted to guarantee a reliable domestic supply of a critical computer chip.

From The Wall Street Journal • Apr. 20, 2026

His first move was to get a reliable guide.

From "George Washington, Spymaster" by Thomas B. Allen

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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