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
Such as dilapidated neighborhoods, toxic air, unkept public parks, failing infrastructure, unreliable public transportation and low wages.
—
Chicago Tribune, 22 Feb. 2026
Beyond that, the US domestic electrical grid is aging and increasingly unreliable.
—David Szondy
february 21, New Atlas, 21 Feb. 2026
Paul Gorton acts as Vernon’s unreliable tour guide.
—John Hopewell, Variety, 18 Feb. 2026
Attorneys also argued that the FBI's witnesses are unreliable and that the FBI failed to disclose information that would discredit its own witnesses.
—Peter Charalambous, ABC News, 18 Feb. 2026
See All Example Sentences for unreliable
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Chicago Tribune, 22 Feb. 2026
Beyond that, the US domestic electrical grid is aging and increasingly unreliable.
—David Szondy
february 21, New Atlas, 21 Feb. 2026
Paul Gorton acts as Vernon’s unreliable tour guide.
—John Hopewell, Variety, 18 Feb. 2026
Attorneys also argued that the FBI's witnesses are unreliable and that the FBI failed to disclose information that would discredit its own witnesses.
—Peter Charalambous, ABC News, 18 Feb. 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 24 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
