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
The unknowns of a new virus outbreak, coupled with an influx of sometimes unreliable information, can generate fear, dread and anxiety.
—
Kate Perez, Chicago Tribune, 16 May 2026
The College Football Playoff was supposed to provide some certainty in a sport that, for too long, based its rewards on unreliable polls.
—Ian Miller Outkick, FOXNews.com, 14 May 2026
The questioning was part of an effort by Panish to portray Erickson as an unreliable witness with an alcohol problem.
—Richard Winton, Los Angeles Times, 13 May 2026
Many institutions still rely on systems that don’t function on mobile devices, in buildings with unreliable connectivity.
—Annika Erikson, Rolling Stone, 13 May 2026
See All Example Sentences for unreliable
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Kate Perez, Chicago Tribune, 16 May 2026
The College Football Playoff was supposed to provide some certainty in a sport that, for too long, based its rewards on unreliable polls.
—Ian Miller Outkick, FOXNews.com, 14 May 2026
The questioning was part of an effort by Panish to portray Erickson as an unreliable witness with an alcohol problem.
—Richard Winton, Los Angeles Times, 13 May 2026
Many institutions still rely on systems that don’t function on mobile devices, in buildings with unreliable connectivity.
—Annika Erikson, Rolling Stone, 13 May 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 18 May. 2026.
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