IPA: /ˈsædɪst/
KK: /sædɪst/
The most unhappy or sorrowful feeling that someone can experience.
She felt like the saddest person in the world after hearing the news.
Comparative: sadder
Superlative: saddest
Saddest → It is formed from "sad" (from Old English *sæd*, meaning sated or full, but evolved to mean unhappy) and the suffix "-est" (meaning the most). The word "saddest" means the most unhappy or the highest degree of sadness.
Think of the word 'sad' which means unhappy, and remember that 'saddest' refers to the highest level of unhappiness.