English · Adjectives
most serious
/məʊst ˈsɪəriəs/
[/məʊst ˈsɪəriəs/]
superlative of serious
Intermediateadjective
Definition
Superlative form of 'serious', made with 'most' because the adjective has several syllables.
Example
It is the most serious matter we face.
It is the most serious matter we face.
Etymology
Formed analytically from 'most' plus 'serious' rather than by adding '-est'.
How & Where It’s Used
Longer adjectives use 'most' with 'the' instead of the '-est' ending.