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
Implied in his statement was that the U.S. has become unreliable because of Trump’s haphazard tariff regime, which has gone through aggressive threats and reversals.
—
Josh Boak, Chicago Tribune, 17 July 2025
Despite the resumptions in service, officials in each area warned residents and business owners that service could be spotty and unreliable in the coming days, and no one ventured to guess when trash service would be restored to normal.
—Caelyn Pender, Mercury News, 16 July 2025
Long-term forecasting is becoming increasingly unreliable, pushing marketing leaders to rethink campaign strategies.
—Expert Panel®, Forbes.com, 14 July 2025
The court found that the testimony of an animal control officer who seized the horses was unreliable based on conflicting factual statements, according to court records.
—Stephen Underwood, Hartford Courant, 11 July 2025
See All Example Sentences for unreliable
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Josh Boak, Chicago Tribune, 17 July 2025
Despite the resumptions in service, officials in each area warned residents and business owners that service could be spotty and unreliable in the coming days, and no one ventured to guess when trash service would be restored to normal.
—Caelyn Pender, Mercury News, 16 July 2025
Long-term forecasting is becoming increasingly unreliable, pushing marketing leaders to rethink campaign strategies.
—Expert Panel®, Forbes.com, 14 July 2025
The court found that the testimony of an animal control officer who seized the horses was unreliable based on conflicting factual statements, according to court records.
—Stephen Underwood, Hartford Courant, 11 July 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 29 Jul. 2025.
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