The meaning of UNPREDICTABLE is not predictable. How to use unpredictable in a sentence.

UNPREDICTABLE definition: 1. likely to change suddenly and without reason and therefore not able to be predicted (= expected…. Learn more.

1. not predictable; variable, uncertain, or erratic. n. 2. something that is unpredictable.

If you describe someone or something as unpredictable, you mean that you cannot tell what they are going to do or how they are going to behave. He is utterly unpredictable. ...Britain's …

WordReference Random House Unabridged Dictionary of American English © 2023 un•pre•dict•a•ble (un′pri dik′ tə bəl), adj. not predictable; not to be foreseen or foretold: an …

Definition of unpredictable adjective from the Oxford Advanced Learner's Dictionary. that cannot be predicted because it changes a lot or depends on too many different things. The …

Jan 20, 2026 · Adjective unpredictable (comparative more unpredictable, superlative most unpredictable) Unable to be predicted. Synonyms: (far less common) nonpredictable, …

Describes something or someone that is likely to change rapidly and unpredictably, especially for the worse. It often has a negative implication, suggesting instability or danger. The political …

UNPREDICTABLE definition: not predictable; not to be foreseen or foretold. See examples of unpredictable used in a sentence.

When something's unpredictable, it doesn't happen at expected times or it can't be predicted. If trains were unpredictable, they wouldn't follow a set schedule and you'd never know when one …