Brighten and Kos

Brighten

Brighten verb - To become glad or hopeful.

Kos is an antonym for brighten.

Kos

Kos noun - (in India) a unit of length having different values in different localities.

Brighten is an antonym for kos in diminish topic.
Cite this Source
Kos and Brighten. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/brighten/kos
Brighten & Kos. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/brighten/kos>.
Kos or Brighten. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/brighten/kos.
Google Ngram Viewer shows how "brighten" and "kos" have occurred on timeline