unpredictable

adjective/ˌʌnprɪˈdɪktəbəl/

Frequency rank: #6,237 most common English word

Meaning

not able to be predicted; likely to change or behave in unexpected ways.

Illustration for the English word “unpredictable”

Example sentence

The weather in this region is completely unpredictable, so always carry an umbrella.

Synonyms & related words

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