Synonyms for (adjective) unpredictable

Synonyms: unpredictable, irregular

Definition: not occurring at expected times

Similar words: sporadic

Definition: recurring in scattered and irregular or unpredictable instances

Usage: a city subjected to sporadic bombing raids


Synonyms: unpredictable

Definition: unknown in advance

Usage: an unpredictable (or indeterminable) future

Similar words: undeterminable, indeterminable

Definition: not capable of being definitely decided or ascertained


Synonyms: unpredictable

Definition: not capable of being foretold

Similar words: aleatory

Definition: dependent on chance

Usage: the aleatory element in life


Similar words: capricious, freakish

Definition: changeable

Usage: a capricious summer breeze; freakish weather


Similar words: episodic, occasional

Definition: occurring or appearing at usually irregular intervals

Usage: episodic in his affections; occasional headaches


Similar words: unforeseeable

Definition: incapable of being anticipated

Usage: unforeseeable consequences