Dictionary.com
Thesaurus.com
Showing results for unreliable. Search instead for hunt reliable.
Synonyms

unreliable

American  
[uhn-ri-lahy-uh-buhl] / ˌʌn rɪˈlaɪ ə bəl /

adjective

  1. not reliable; not to be relied or depended on.

    Synonyms:
    untrustworthy, irresponsible, undependable

unreliable British  
/ ˌʌnrɪˈlaɪəbəl /

adjective

  1. not reliable; untrustworthy

    an unreliable witness

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unreliability noun
  • unreliableness noun
  • unreliably adverb

Etymology

Origin of unreliable

First recorded in 1830–40; un- 1 + reliable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Efforts to directly date fossil remains such as bones or teeth have often resulted in unreliable or inconsistent ages.

From Science Daily

Isaac: We spoke that he’s very much an unreliable narrator.

From Los Angeles Times

Officials cited high visa overstay rates, unreliable civil records, corruption, terrorist activity and a lack of cooperation in accepting deported nationals.

From BBC

"I always thought of ambulances as being an urgent medical resource, but I now view them as unreliable - and my faith that they will be here when needed is gone," Ms Whitson added.

From BBC

To examine how males respond to this unreliable signal, researchers observed a wild bonobo community at Wamba in the Luo Scientific Reserve in the Democratic Republic of the Congo.

From Science Daily