unreliable
adjective/ˌʌnrɪˈlaɪəbəl/
Frequency rank: #7,438 most common English word
Meaning
Not able to be trusted or depended on; likely to fail or give wrong information.

Example sentence
The weather forecast turned out to be completely unreliable, so we got soaked in the rain.
Synonyms & related words
- untrustworthy
- undependable
- inconsistent
- unpredictable
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