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unreliable

UK
/ˌʌn.rɪˈlaɪ.ə.bəl/
US
/ˌʌn.rɪˈlaɪ.ə.bəl/

Translations

unreliableadjective
more unreliable
Comp.
most unreliable
Super.
UK
/ˌʌn.rɪˈlaɪ.ə.bəl/
US
/ˌʌn.rɪˈlaɪ.ə.bəl/
peu fiable
The weather forecast was unreliable, leading to unexpected rain during the picnic.
Les prévisions météorologiques étaient peu fiables, ce qui a entraîné une pluie inattendue pendant le pique-nique.
Additional translations
non fiableSurtout employé dans les contextes techniques ou formels.
Synonyms
unpredictable
inconsistent
undependable
erratic
disloyal
faithless
untrustworthy
Antonyms
reliable

Definitions

unreliableadjective
Not able to be trusted or depended on.
The weather forecast was unreliable, leading to unexpected rain during the picnic.
Not consistently accurate, valid, or dependable, especially of data, measurements, or methods.
Because of a calibration error, the readings from the device were unreliable.
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