Headlong and Perpendicular

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Headlong adjective - Acting or done with excessive or careless speed.

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Perpendicular and headlong are semantically related. In some cases you can use "Perpendicular" instead an adjective "Headlong".

Perpendicular adjective - Rising straight up.

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Headlong and perpendicular are semantically related. Sometimes you can use "Headlong" instead an adjective "Perpendicular".

Cite this Source

Perpendicular and Headlong. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/headlong/perpendicular

Headlong & Perpendicular. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/headlong/perpendicular>.

Perpendicular or Headlong. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/headlong/perpendicular.

Google Ngram Viewer shows how "headlong" and "perpendicular" have occurred on timeline