unpredictable (comparative more unpredictable, superlative most unpredictable) Unable to be predicted. synonyms, antonym hyponym quotations Synonyms: (far less common) nonpredictable, vagabond Antonym: predictable
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 notoriously unpredictable weather.
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 unpredictable weather in the mountains can make climbing extremely hazardous. The result is entirely unpredictable.
"Unpredictable" is an adjective used to describe something that cannot be foreseen or anticipated. It captures the idea of randomness, spontaneity, or uncertainty.
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 would arrive.