IPA: /sɪˈvɪərɪst/
KK: /sɪˈvɪrɪst/
The most extreme or intense in terms of harshness, seriousness, or difficulty.
The severest punishment was given to those who broke the law.
Comparative: more severe
Superlative: severest
Severest is formed from "severe" (from Latin *severus*, meaning serious or strict) and the superlative suffix "-est" (meaning most). The word "severest" means the most serious or strict in nature.
Think of 'severe' as something serious or strict, and remember that 'severest' means the most serious or strict.