unreliable

Definition

Not reliable.

Etymology

From un- + reliable.

Example Sentences

• "Tell one another whether any one of you has ever heard me discuss such questions briefly or at length; and then you will realize that the other popular reports about me are equally unreliable."
• "The opposite issue emerges in the summer when students face scorching temperatures with unreliable or nonexistent air conditioning."
• ""Operating the WCML at this intensity makes it challenging to maintain acceptable performance levels, resulting in a frustratingly unreliable service for passengers. Minor disruption can escalate into significant delays because a train running only a few minutes late can miss its slot across a junction, resulting in a snowballing effect across the network.""