Designed
Designed adjective - Done or made or performed with purpose and intent.
Spontaneous is an antonym for designed.
Spontaneous
Spontaneous adjective - Done instantly and without conscious thought or decision.
Usage example: hugging a crying child is simply a spontaneous reaction
Designed is an antonym for spontaneous.
Nearby Words: spontaneity, spontaneously
Both words in one sentence
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Justified since she'd been doused in a powerful magic potion designed to create another spontaneous burst of sea-life, Cambrian Explosion-style.
Cite this Source
Spontaneous and Designed. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/designed/spontaneous
Designed & Spontaneous. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/designed/spontaneous>.
Spontaneous or Designed. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/designed/spontaneous.
Google Ngram Viewer shows how "designed" and "spontaneous" have occurred on timeline