英和和英

発音

• (Received Pronunciation) IPA: /spɒnˈteɪ.ni.əs.li/
• (米国発音) IPA: /spɑnˈteɪ.ni.əs.li/

副詞

spontaneously (comparative more spontaneously, superlative most spontaneously)

1. In a spontaneous manner; naturally; voluntarily.
   • 1998 May 26, C. Claiborne Ray, “Q&A; Spontaneous Combustion”, in The New York Times‎, archived from the original on 4 November 2023:

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

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

     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.

アナグラム

• stenopalynous