unreliable
//ˌʌn.rɪˈlaɪ.ə.bəl//
Adjective
unreliableCanonical form
more unreliableComparative
most unreliableSuperlative
1
Not able to be trusted or depended on; inconsistent or unpredictable in behavior, performance, or quality.
The weather forecast is often unreliable in this region.
2
(of information or a source) Not accurate or trustworthy; likely to be false or misleading.
The article was based on unreliable sources, so the facts were incorrect.