IPA: /ˈsɒmbərɪst/
KK: /ˈsɑːmbərɪst/
The most serious, dark, or gloomy in mood or appearance.
The somberest moment of the ceremony was when they remembered those who had passed away.
Comparative: sombler
Superlative: somberest
Somberest → It is formed from "somber" (from Old French *sombre*, meaning dark or gloomy) and the superlative suffix "-est" (meaning most). The word "somberest" means the most dark or gloomy in appearance or mood.
Think of the word 'sombre' which means dark or gloomy, and remember that 'somberest' refers to the most gloomy or dark state.