unpredictable B1 Topic:People & Society US /ˌənprɪˈdɪktəbəl/ See IPA manual Freq #8541 Meanings 1 adj Impossible to know in advance; changing in ways you cannot expect The weather in the mountains is highly unpredictable. 2 adj Behaving in a way that often surprises people Her moods were unpredictable, so no one knew what to expect. Thesaurus Synonyms 2 adj · behaving in a way that... irregular Etymology AI details From un- + predictable. Topics People & Society External links Cambridge Dictionary Wiktionary Google Images # unpredictable **Type:** Word **Level:** B1 **Part of speech:** adj **IPA (US):** /ˌənprɪˈdɪktəbəl/ **Frequency rank:** 8541 ## Meanings 1. Impossible to know in advance; changing in ways you cannot expect 2. Behaving in a way that often surprises people ## Examples - The weather in the mountains is highly unpredictable. - Her moods were unpredictable, so no one knew what to expect. ## Etymology From un- + predictable. ## AI Etymology Unpredictable is from un- + predictable. The surface analysis is un- + predictable. The prefix un- supplies the negative or reversive element. In present-day use, it can mean impossible to know in advance; changing in ways you cannot expect, or behaving in a way that often surprises people. ## Topics - People & Society markdown