unreliable

adj, noun — 2 senses

unreliable

adj

UK /ˌʌn.ɹɪˈlaɪ.ə.bl̩/ · US /ˌʌn.ɹəˈlaɪ.ə.bəl/

Etymology From un- + reliable.

1

Not reliable.

  • 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.1954, Plato, translated by Hugh Tredennick, “Socrates on Trial: The Apology”, in The Last Days of Socrates (Penguin Classics), Harmondsworth, Middlesex: Penguin Books, →OCLC, page 22:
  • The opposite issue emerges in the summer when students face scorching temperatures with unreliable or nonexistent air conditioning.2018 January 4, Janie Tankard Carnock, “Frigid Baltimore City schools: The racism we haven’t confronted”, in CNN:
1 more example
  • "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."2020 May 6, Philip Haigh, “Just one more stop on the long journey to HS2 fulfillment [sic]”, in Rail, page 65:
Derived terms
unreliable narrator, unreliableness, unreliably
Related terms
unreliability

unreliable

noun

Etymology From un- + reliable.

1

One who or that which cannot be relied upon.

  • His employment by the leading papers in Chicago was intermittent, as he was classed among the unreliables. One could never tell when he was going to get drunk.1894, Inebriety: its treatment and cure, page 17:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.