Accidental
Accidental adjective - Happening by chance.
Designed
Designed adjective - Done or made or performed with purpose and intent.
Accidental is an antonym for designed.
Both words in one sentence
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Also, the towers were specially designed to withstand airplane impacts, but it was assumed such collisions would be accidental involving aircraft approaching New York's airports and thus low on fuel.
Source: Ramming Always Works -
He worked with them willingly until he was 16, when he left after their misuse of a computer program he designed caused the accidental deaths of thousands of civilians.
Source: Series / Scorpion -
It centres on the "accidental" infection of a strip joint by a virus designed to offset the American Army's disastrously high body count in several world conflicts.
Source: Film / Zombie Strippers
Cite this Source
Designed and Accidental. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/accidental/designed
Accidental & Designed. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/accidental/designed>.
Designed or Accidental. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/accidental/designed.
Google Ngram Viewer shows how "accidental" and "designed" have occurred on timeline