WordReference Random House Learner's Dictionary of American English © 2026
un•pre•dict•a•ble /ˌʌnprɪˈdɪktəbəl/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- not predictable:unpredictable weather.
un•pre•dict•a•ble
(un′pri dik′tə bəl),USA pronunciation adj.
n.
un′pre•dict′a•bil′i•ty, un′pre•dict′a•ble•ness, n.
un′pre•dict′a•bly, adv.
- not predictable;
not to be foreseen or foretold:an unpredictable occurrence.
n.
- something that is unpredictable:the unpredictables of life.
- un-1 + predictable 1855–60
un′pre•dict′a•bly, adv.
- 1. . erratic, fitful, variable, uncertain.
'unpredictable' also found in these entries (note: many are not synonyms or translations):
caprice
- capricious
- chance
- erratic
- instability
- nutcase
- nutter
- quicksilver
- rogue state
- unknown
- unsettled
- volatile
- wacky
- wayward
- whiffle
- wild card
- aleatory
- can of worms
- crapshoot
- crazy
- dicey
- fickle
- fracture
- harum-scarum
- incalculable
- off-the-wall
- quixotic
- rogue
- temperamental
- tricky
- uncertain
- vagary
- whimsical