un·re·li·able
ˌən-ri-ˈlī-ə-bəl 
: not reliable : undependable, untrustworthy
an unreliable friend
an unreliable source of funding
an unreliable car
unreliability
noun
the unreliability of the data
a person with a reputation for unreliability
: the quality or state of being unreliable
Examples of unreliable in a Sentence
Recent Examples on the Web
Damini Sood,
Forbes.com,
2 July 2026
But weak charging infrastructure, limited and unreliable electricity supply outside major cities, and high financing costs could constrain widespread adoption on the continent, even as investors race to build out infrastructure.
—
Jenny Vaughan,
semafor.com,
1 July 2026
With no clear evidence and an unreliable witness, a community governed by customary law must preserve peace without sacrificing another child.
—
Melanie Goodfellow,
Deadline,
29 June 2026
While California’s seven-day grace period for mail ballots has contributed to slow tabulations, it has not been shown to trigger fraud or unreliable vote counts.
—
Los Angeles Times,
29 June 2026
See All Example Sentences for unreliable
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Adjective
Employees quickly abandon systems that are slow, unreliable or difficult to use.
—
Damini Sood,
Forbes.com,
2 July 2026
But weak charging infrastructure, limited and unreliable electricity supply outside major cities, and high financing costs could constrain widespread adoption on the continent, even as investors race to build out infrastructure.
—
Jenny Vaughan,
semafor.com,
1 July 2026
With no clear evidence and an unreliable witness, a community governed by customary law must preserve peace without sacrificing another child.
—
Melanie Goodfellow,
Deadline,
29 June 2026
While California’s seven-day grace period for mail ballots has contributed to slow tabulations, it has not been shown to trigger fraud or unreliable vote counts.
—
Los Angeles Times,
29 June 2026
See All Example Sentences for unreliable
Cite this Entry
“Unreliable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unreliable. Accessed 5 Jul. 2026.
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