Arbitrary and Unpremeditated

Arbitrary

Arbitrary adjective - Lacking a definite plan, purpose, or pattern.
Usage example: the order of the names of the 10 semifinalists is entirely arbitrary

Unpremeditated and arbitrary are semantically related. In some cases you can use "Unpremeditated" instead an adjective "Arbitrary".

Unpremeditated

Unpremeditated adjective - Happening by chance.
Usage example: an unpremeditated encounter with an old boyfriend

Arbitrary and unpremeditated are semantically related. Sometimes you can use "Arbitrary" instead an adjective "Unpremeditated".
Cite this Source
Unpremeditated and Arbitrary. (2016). Retrieved 2026, July 27, from https://thesaurus.plus/related/arbitrary/unpremeditated
Arbitrary & Unpremeditated. N.p., 2016. Web. 27 Jul. 2026. <https://thesaurus.plus/related/arbitrary/unpremeditated>.
Unpremeditated or Arbitrary. 2016. Accessed July 27, 2026. https://thesaurus.plus/related/arbitrary/unpremeditated.
Google Ngram Viewer shows how "arbitrary" and "unpremeditated" have occurred on timeline