Lightless and Ultrabright
Opposite meaning words
Lightless
Lightless adjective - Being without light or without much light.
Usage example: wondered what might be lurking in the lightless corners of the basement
Ultrabright is an antonym for lightless.
Ultrabright
Cite this Source
Ultrabright and Lightless. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/lightless/ultrabright
Lightless & Ultrabright. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/lightless/ultrabright>.
Ultrabright or Lightless. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/lightless/ultrabright.
Google Ngram Viewer shows how "lightless" and "ultrabright" have occurred on timeline