unreliable Meaning, Definition & Usage

adjective satellite liable to be erroneous or misleading
undependable.
- an undependable generalization
adjective not worthy of reliance or trust
undependable.
- in the early 1950s computers were large and expensive and unreliable
- an undependable assistant
adjective satellite dangerously unstable and unpredictable
treacherous.
- treacherous winding roads
- an unreliable trestle
adjective satellite lacking a sense of responsibility

Not reliable; untrustworthy. See Reliable. -- Un`re*li"a*ble*ness, n.
Alcibiades . . . was too unsteady, and (according to Mr. Coleridge's coinage) "unreliable;" or perhaps, in more correct English, too "unrelyuponable." De Quincey.