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.

This work creates new possibilities for building quantum systems that are both scalable and reliable.

From Science Daily • Apr. 13, 2026

Rights groups including Amnesty International say Iran carries out the most executions of any nation worldwide per capita, and the most of any country other than China, for which no reliable data is available.

From Barron's • Apr. 13, 2026

The Aces already have a core in place, but Doogan has enough upside to be worth a late-round pick as a reliable bench shooter.

From Los Angeles Times • Apr. 12, 2026

It deployed early-warning radar systems and built weather stations to assert sovereignty and get reliable forecasts for military operations.

From The Wall Street Journal • Apr. 11, 2026

Experiments need at least twenty test subjects to ensure reliable data.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

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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