unpredictable

[ uhn-pri-dik-tuh-buhl ]

adjective

1. not predictable; not to be foreseen or foretold:

   an unpredictable occurrence.

   Synonyms: uncertain, variable, fitful, erratic

noun

1. something that is unpredictable:

   the unpredictables of life.

unpredictable

/ ˌʌnprɪˈdɪktəbəl /

adjective

1. not capable of being predicted; changeable

Derived Forms

• ˌunpreˌdictaˈbility, noun
• ˌunpreˈdictably, adverb

Other Words From

• unpre·dicta·bili·ty unpre·dicta·ble·ness noun
• unpre·dicta·bly adverb

Word History and Origins

Origin of unpredictable¹

First recorded in 1855–60; un- ¹ + predictable

Example Sentences

And few places in gaming are as unpredictable as an IndieCade event.

From Los Angeles Times

In a statement, the US embassy in Haiti said it was "aware of gang-led efforts to block travel to and from Port-au-Prince" and said the security situation in the country remained "unpredictable and dangerous".

From BBC

However, tipping practices also sparked debates about fairness and inequality as employers increasingly relied on tips to supplement low wages, leaving workers dependent on unpredictable gratuities.

From Salon

The imperative to answer them is stronger now the unpredictable president is on his way back.

From BBC

There’s hope for at least a short-term boost in ratings and readership from another unpredictable Trump administration.

From Los Angeles Times

Related Words

• erratic
• fickle
• uncertain
• unreliable
• unstable