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
Look at Annapolis’ obsession with offshore wind projects — big, ugly, industrial efforts that enrage residents, threaten marine life and provide unreliable power while depending entirely on massive ratepayer subsidies.
—
Justin Ready, Baltimore Sun, 15 Feb. 2026
Persistent droughts, explosive population growth, competing urban/industrial demands, and unreliable Rio Grande flows (despite recent 1944 Water Treaty progress) are draining reservoirs and threatening our $200B food & fiber economy.
—Eleanor Dearman, Fort Worth Star-Telegram, 14 Feb. 2026
The generator is designed as an auxiliary or primary power source for satellites operating where solar energy is unreliable or insufficient.
—Neetika Walter, Interesting Engineering, 11 Feb. 2026
Picture him in concert with a bunch of late-middle-age white men (including his father and Vernon) in ski masks, toting guns; a dead body; an unreliable witness to the crime—I’ll stop here, though there’s more.
—Adelle Waldman, The Atlantic, 10 Feb. 2026
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Justin Ready, Baltimore Sun, 15 Feb. 2026
Persistent droughts, explosive population growth, competing urban/industrial demands, and unreliable Rio Grande flows (despite recent 1944 Water Treaty progress) are draining reservoirs and threatening our $200B food & fiber economy.
—Eleanor Dearman, Fort Worth Star-Telegram, 14 Feb. 2026
The generator is designed as an auxiliary or primary power source for satellites operating where solar energy is unreliable or insufficient.
—Neetika Walter, Interesting Engineering, 11 Feb. 2026
Picture him in concert with a bunch of late-middle-age white men (including his father and Vernon) in ski masks, toting guns; a dead body; an unreliable witness to the crime—I’ll stop here, though there’s more.
—Adelle Waldman, The Atlantic, 10 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 17 Feb. 2026.
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