Meaning of the word full-blown in English

What does full-blown mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

full-blown

US /ˈfʊlˈbloʊn/
UK /ˈfʊlˈbləʊn/

Adjective

fully developed; complete

Example:
The argument escalated into a full-blown crisis.
She developed a full-blown allergy to nuts.