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
His release comes months after a state judge ruled that the evidence prosecutors used to secure the conviction was unreliable and rooted in discredited bite-mark analysis.
—
Landon Mion, FOXNews.com, 27 Nov. 2025
Additionally, there are also issues such as unreliable or unavailable GPS in complex industrial environments – warehouses, ports and logistics hubs – which prevent robots from navigating safely and autonomously.
—Bojan Stojkovski, Interesting Engineering, 25 Nov. 2025
The incident set off a wave of concern online about the persistent presence of inauthentic accounts, but detection methods to sniff out such accounts remained unreliable for years.
—Angela Yang, NBC news, 24 Nov. 2025
And in most cases, the links aren’t being identified as unreliable.
—PC Magazine, 23 Nov. 2025
See All Example Sentences for unreliable
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Landon Mion, FOXNews.com, 27 Nov. 2025
Additionally, there are also issues such as unreliable or unavailable GPS in complex industrial environments – warehouses, ports and logistics hubs – which prevent robots from navigating safely and autonomously.
—Bojan Stojkovski, Interesting Engineering, 25 Nov. 2025
The incident set off a wave of concern online about the persistent presence of inauthentic accounts, but detection methods to sniff out such accounts remained unreliable for years.
—Angela Yang, NBC news, 24 Nov. 2025
And in most cases, the links aren’t being identified as unreliable.
—PC Magazine, 23 Nov. 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 5 Dec. 2025.
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