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
But in an industry whose currency has historically been trust, most news brands have been leery of turning their core relationship with their readers over to unreliable LLMs.
—
Max Tani, semafor.com, 15 Dec. 2025
Critics of the new Syrian authorities have pointed to Saturday’s attack as evidence that the security forces are deeply infiltrated by IS and are an unreliable partner.
—Abby Sewell, Fortune, 14 Dec. 2025
Characters broke the fourth wall as players navigated conflicting intelligence and unreliable narrators, unclear about what was or wasn’t a simulation — a game within a game.
—Will Ripley, CNN Money, 12 Dec. 2025
Machine learning models can produce unreliable, unpredictable and unexplainable outcomes.
—Anjana Susarla, The Conversation, 12 Dec. 2025
See All Example Sentences for unreliable
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Max Tani, semafor.com, 15 Dec. 2025
Critics of the new Syrian authorities have pointed to Saturday’s attack as evidence that the security forces are deeply infiltrated by IS and are an unreliable partner.
—Abby Sewell, Fortune, 14 Dec. 2025
Characters broke the fourth wall as players navigated conflicting intelligence and unreliable narrators, unclear about what was or wasn’t a simulation — a game within a game.
—Will Ripley, CNN Money, 12 Dec. 2025
Machine learning models can produce unreliable, unpredictable and unexplainable outcomes.
—Anjana Susarla, The Conversation, 12 Dec. 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 25 Dec. 2025.
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