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.

The P/E is way too simplistic to be a reliable signal of value.

From Barron's • Apr. 10, 2026

Most rules of thumb peg a reliable savings rate to be more in the 10% to 15% range.

From MarketWatch • Apr. 10, 2026

As electricity demand rises, driven by data centers and advanced manufacturing, regions that can deliver reliable, affordable power will also have a competitive advantage.

From The Wall Street Journal • Apr. 9, 2026

But the waters off of Humboldt have faster and more reliable wind.

From Los Angeles Times • Apr. 9, 2026

Brahe at first thought that he had obtained a reliable figure for the parallax of Mars which proved the Ptolemaic system was mistaken, although he later realized that there were problems with it.

From "The Invention of Science" by David Wootton

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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