IPA: /ˈfaɪəriəst/
KK: /ˈfaɪəriɪst/
The most intense or passionate, often used to describe strong emotions or extreme heat.
She gave the fieriest speech of the night, inspiring everyone in the audience.
Comparative: fiercer
Superlative: fieriest
Fieriest → It is formed from "fierce" (from Old French *fier*, meaning proud or fierce) and the superlative suffix "-est" (meaning most). The word "fieriest" means the most fierce or intense in nature.
Think of the word 'fierce' which means intense or strong, and remember that 'fieriest' describes something that is the most intense or strong.