Generally not comparable; comparative and superlative forms are rarely used and considered non-standard.
Translations
The nascent company showed great promise with its innovative technology.
La société naissante montrait de grandes promesses grâce à sa technologie innovante.
Definitions
Beginning to exist or develop; in the early stages of existence. The nascent company showed great promise with its innovative technology.
Newly formed or coming into being in a chemical reaction; existing for a very short time and highly reactive. Nascent hydrogen can reduce metal ions that stable molecular hydrogen cannot.