Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “unpredictable”

See all translations

unpredictable

adjective uk   /ˌʌn.prɪˈdɪk.tə.bl̩/ us  
B2 likely to change suddenly and without reason and therefore not able to be predicted (= expected before it happens) or depended on: The weather there can be a bit unpredictable - one minute it's blue skies and the next minute it's pouring down. The hours in this job are very unpredictable - you sometimes have to work late at very short notice.
More examples
unpredictability
noun [U] uk   /ˌʌn.prɪ.dɪk.təˈbɪl.ɪ.ti/ us    /-ə.t̬i/
unpredictably
adverb uk   /-bli/ us  
(Definition of unpredictable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of unpredictable?
Add Cambridge dictionaries to your browser to your website

Definitions of “unpredictable” in other dictionaries

Word of the Day

advent calendar

a decorative piece of card, often hung on the wall, that has a small opening with a door for each of the days of the month before Christmas. Children open one of these doors each day, finding a picture under it.

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

tweleb noun

December 22, 2014
informal a Twitter celebrity; (more specifically, someone who has more than 1,000 followers on Twitter) There were a few old and a few new faces, including a tweleb or two. Expect to see and hear more from these cool kids.

Read More