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1. Dictionary

   Un·re·li·a·ble

   /ˌənrəˈlīəb(ə)l/

   

   adjective

   • 1. not able to be relied upon: "he's lazy and unreliable" Similar undependableuntrustworthyirresponsiblerecklessficklecapriciousirregularerraticunpredictableinconstantmutablefaithlessuntrueflightyslipperyquestionableopen to questionopen to doubtdoubtfuldubioussuspectunsoundtenuousflimsyweakunsubstantialimplausibleunconvincingunsupportedunsubstantiatedfallibleshakyrockyriskychancydisreputablespeciousdefectiveinaccuratevagueuntrueincorrectwide of the markoff-targetwronginformal:iffydiceydodgyOpposite reliablesteadfastreliableaccurate

   Derivatives

   • 1. unreliably adverb
   • 2. unreliableness noun

   Scrabble Points: 12

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2. www.britannica.com › dictionary › unreliableUnreliable Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › unreliable

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   1. : not able to be trusted to do or provide what is needed or promised. Public transportation here is unreliable. The buses never come on time. an unreliable car [=a car that breaks down often] 2. : not believable or trustworthy. an unreliable witness. That report is unreliable.

3. www.merriam-webster.com › dictionary › unreliabilityUnreliability Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › unreliability

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   The meaning of UNRELIABLE is not reliable : undependable, untrustworthy. How to use unreliable in a sentence.

4. www.wordreference.com › definition › unreliableunreliable - WordReference.com Dictionary of English

   www.wordreference.com › definition › unreliable

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   un•re•li•a•ble (un′ri lī′ ə bəl), adj. not reliable; not to be relied or depended on. un - 1 + reliable 1830–40. un′re•li′a•bil′i•ty, un′re•li′a•ble•ness, n. un′re•li′a•bly, adv. undependable, irresponsible, untrustworthy. 'unreliable' also found in these entries (note: many are not synonyms or translations):

5. www.ldoceonline.com › dictionary › unreliableunreliable | meaning of unreliable in Longman Dictionary of ...

   www.ldoceonline.com › dictionary › unreliable

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   unreliable meaning, definition, what is unreliable: unable to be trusted or depended on: Learn more.

6. www.oed.com › dictionary › unreliable_adjunreliable, adj. meanings, etymology and more | Oxford ...

   www.oed.com › dictionary › unreliable_adj

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   / (ˌ)ʌnrᵻˈlʌɪəbl/ un-ruh-LIGH-uh-buhl. U.S. English. /ˌənrəˈlaɪəb (ə)l/ uhn-ruh-LIGH-uh-buhl. See pronunciation. Where does the adjective unreliable come from? Earliest known use. 1810s. is formed within English, by derivation. Etymons: un- prefix1, reliable adj. See etymology. Nearby entries. unreleasable, adj. 1665–. unreleased, adj. a1425–.

7. www.macmillandictionary.com › us › dictionaryUNRELIABLE (adjective) definition and synonyms | Macmillan ...

   www.macmillandictionary.com › us › dictionary

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   Definition of UNRELIABLE (adjective): information: not definitely true or accurate; person: whom you cannot trust to do something; witness: whose ...

8. www.yourdictionary.com › unreliableUnreliable Definition & Meaning | YourDictionary

   www.yourdictionary.com › unreliable

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   Unreliable Definition. ŭnrĭ-līə-bəl. Meanings. Synonyms. Sentences. Definition Source. Adjective. Filter. adjective. Marked by or exhibiting a lack of reliability. American Heritage. Not reliable. Wiktionary. Synonyms: whimsical. volatile. villainous. untenable. unscrupulous. unsafe. unprincipled. unconscionable. uncertain. tenuous. skittish.