unreliable
adjective
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
Examples of unreliable in a Sentence
Recent Examples on the Web
Of course, there are serious technical doubts about the practicality of weapons that depend on notoriously unreliable, not to mention toxic, nuclear power.
—
Matthew Chance, CNN Money, 30 Oct. 2025
Doing so would lead to an unreliable, inefficient energy grid.
—Jordan Blum, Fortune, 28 Oct. 2025
Cheaper options or knock-offs tend to come with flimsy sockets, buzzing ballasts, or unreliable switches, which can make rooms look cheap or dated far sooner than expected and even create fire hazards.
—Lauren Bengtson, Better Homes & Gardens, 25 Oct. 2025
But agents at The Steller Group’s Senior Solutions Division often hear that the unexpected happens—maybe a medical emergency—that makes an older house unreliable for one partner’s physical needs.
—Sponsored Content, Denver Post, 25 Oct. 2025
See All Example Sentences for unreliable
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Matthew Chance, CNN Money, 30 Oct. 2025
Doing so would lead to an unreliable, inefficient energy grid.
—Jordan Blum, Fortune, 28 Oct. 2025
Cheaper options or knock-offs tend to come with flimsy sockets, buzzing ballasts, or unreliable switches, which can make rooms look cheap or dated far sooner than expected and even create fire hazards.
—Lauren Bengtson, Better Homes & Gardens, 25 Oct. 2025
But agents at The Steller Group’s Senior Solutions Division often hear that the unexpected happens—maybe a medical emergency—that makes an older house unreliable for one partner’s physical needs.
—Sponsored Content, Denver Post, 25 Oct. 2025
See All Example Sentences for unreliable
Cite this Entry
“Unreliable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unreliable. Accessed 1 Nov. 2025.
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