unreliable

un·re·li·a·ble  (nr-l-bl)

adj.

Marked by or exhibiting a lack of reliability.

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unre·lia·bili·ty, unre·lia·ble·ness n.

unre·lia·bly adv.

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unreliable [ˌʌnrɪˈlaɪəb^əl]

adj

not reliable; untrustworthy an unreliable witness

Thesaurus

Adj.	1.	unreliable - liable to be erroneous or misleading; "an undependable generalization" undependable fallible - likely to fail or make errors; "everyone is fallible to some degree"
	2.	unreliable - not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant" undependable untrustworthy, untrusty - not worthy of trust or belief; "an untrustworthy person" dependable, reliable - worthy of reliance or trust; "a reliable source of information"; "a dependable worker"
	3.	unreliable - dangerously unstable and unpredictable; "treacherous winding roads"; "an unreliable trestle" treacherous dangerous, unsafe - involving or causing danger or risk; liable to hurt or harm; "a dangerous criminal"; "a dangerous bridge"; "unemployment reached dangerous proportions"
	4.	unreliable - lacking a sense of responsibility     irresponsible - showing lack of care for consequences; "behaved like an irresponsible idiot"; "hasty and irresponsible action"

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unreliable

adjective

1. inaccurate, unconvincing, implausible, mistaken, false, uncertain, fake, deceptive, erroneous, unsound, fallible, specious, delusive The figures were unreliable because the sample sizes were too small.
inaccurate accurate, infallible

2. undependable, irresponsible, untrustworthy, unstable, treacherous, disreputable, not conscientious She had proved to be an unreliable witness and had lied to police.
undependable reliable, dependable, trustworthy, responsible, stable, conscientious

Translations

unreliable [ˈʌnrɪˈlaɪəbl] ADJ [person] → informal, poco de fiar; [machine, service] → poco fiable, que no es de fiar; [information, statistics] → poco fiable; [weather, climate] → variable, inestable
they thought British workers were unreliable → opinaban que a los trabajadores británicos les faltaba formalidad, opinaban que los trabajadores británicos eran muy informales or no eran muy de fiar
the phones here are unreliable → los teléfonos aquí son poco fiables or no son de fiar
my memory is so unreliable these days → mi memoria no es muy de fiar últimamente

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unreliable [ˌʌnrɪˈlaɪəb^əl] adj

[person] → sur qui on ne peut pas compter, peu fiable
He's completely unreliable → On ne peut pas du tout compter sur lui.

[car, machine] → peu fiable; [method, judgement] → peu fiable
It's a nice car, but a bit unreliable → C'est une belle voiture, mais elle n'est pas très fiable.

[evidence] → insuffisant(e)
to acquit due to unreliable evidence → acquitter faute de preuves concluantes

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unreliable

adj → unzuverlässig; to prove (to be) unreliable → sich als unzuverlässig erweisen

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unreliable [ˌʌnrɪˈlaɪəbl] adj (person) → su cui non si può contare or fare affidamento; (source) → inattendibile; (firm) → poco serio/a; (car, machine) → che non dà affidamento

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unreliable → غير جدير بالثقة nespolehlivý upålidelig unzuverlässig αναξιόπιστος informal epäluotettava imprévisible nepouzdan inaffidabile あてにならない 신뢰할 수 없는 onbetrouwbaar upålitelig zawodny não confiável, não fiável ненадежный opålitlig ไว้ใจไม่ได้ güvenilmez không đáng tin cậy 不可靠的