Unpredictable
Unpredictable adjective - Likely to change frequently, suddenly, or unexpectedly.
Vast and unpredictable are semantically related. In some cases you can use "Vast" instead an adjective "Unpredictable".
Nearby Word: unpredictability
Vast
Vast adjective - Unusually large.
Unpredictable and vast are semantically related. Sometimes you can use "Unpredictable" instead an adjective "Vast".
Mutual synonyms
Both words in one sentence
- In Wearing the Cape and its sequels,the vast majority of superhumans are randomly gifted through the unpredictable survival mechanism of the Breakthrough.
Source: Randomly Gifted -
Power at a Price: Ozma's Wishing Pills exact pain Randomly Gifted: In Hope/Astra's world, the vast majority of superhumans are randomly gifted through the unpredictable survival mechanism of the Breakthrough.
Source: Literature / Wearing the Cape
Cite this Source
Vast and Unpredictable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/unpredictable/vast
Unpredictable & Vast. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/unpredictable/vast>.
Vast or Unpredictable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/unpredictable/vast.
Google Ngram Viewer shows how "unpredictable" and "vast" have occurred on timeline