unpredictable

adjective
UK: /ˌʌnprɪˈdɪktəbl/
US: /ˌʌnprɪˈdɪktəbl/

  1. Not able to be predicted; likely to change suddenly and without reason.

    1. The weather is very unpredictable today.
    2. Her behavior is extremely unpredictable sometimes, so be careful around her.

  2. Something or someone that is erratic, so that you don't know what will happen.

    1. The game was very unpredictable until the last minute.
    2. He was an unpredictable leader, often making sudden, unexpected decisions.

Synonyms

erratic capricious volatile unstable changeable inconsistent unreliable iffy chancy dicey flaky mercurial whimsical wayward arbitrary random chance fortuitous uncertain undetermined unforeseeable contingent unpredictable

Frequently Asked Questions

The word "unpredictable" in English means: Not able to be predicted; likely to change suddenly and without reason., Something or someone that is erratic, so that you don't know what will happen..

The phonetic transcription of "unpredictable" is /ˌʌnprɪˈdɪktəbl/ in British English and /ˌʌnprɪˈdɪktəbl/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "unpredictable": erratic, capricious, volatile, unstable, changeable, inconsistent, unreliable, iffy, chancy, dicey, flaky, mercurial, whimsical, wayward, arbitrary, random, chance, fortuitous, uncertain, undetermined, unforeseeable, contingent, unpredictable.

Example usage of "unpredictable": "The weather is very unpredictable today.". More examples on the page.