spontaneously

comparative more spontaneously · superlative most spontaneously

1. In a spontaneous manner; naturally; voluntarily.

   The idea that the body could spontaneously ignite was promoted by the 19th-century temperance movement.

   1998 May 26, C. Claiborne Ray, “Q&A; Spontaneous Combustion”, in The New York Times, archived from the original on 04 Nov 2023

   1 more example

   Smaller-scale isolated deaf-education programs had existed previously in 20th-century Nicaragua, Shepard-Kegl says, but the critical mass needed to spontaneously develop Nicaraguan Sign Language only occurred with the opening of Melania Morales.

   2018 July 13, Shoshi Parks, “How Deaf Children in Nicaragua Created a New Language”, in Atlas Obscura, archived from the original on 29 Mar 2025