Find Antonyms

reliability Antonyms

Opposite of reliability

Because the opposite of reliability shifts with each meaning, the 8 antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The quality of being trustworthy or of performing consistently well.

Usage Example

"When purchasing a family car, many buyers prioritize safety and unreliability over high speed."

Strongest
unreliability
undependability
untrustworthiness
Strong
inconsistency
fickleness
instability

• noun (Context 2)

The degree to which the result of a measurement, calculation, or specification can be depended on to be accurate and consistent across repeated trials.

Usage Example

"The researchers repeated the experiment three times to ensure the unreliability of their data."

Strongest
unreliability
inconsistency
Strong
inaccuracy
fallibility

Similar words to reliability

Words similar to reliability shift depending on context. Common synonyms include:

dependability
reliableness
trustworthiness
consistency
repeatability
reproducibility
soundness
steadfastness
See all synonyms of reliability

• Nearby Words

relevance
relevant
relevantly
reliability
reliable
reliably
reliance

Cite this Entry

Wordmom. (2026). Antonyms for Reliability. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/reliability
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