overblown

adjectives

puffed up with vanity
"a grandiloquent and boastful manner"; "overblown oratory"; "a pompous speech"; "pseudo-scientific gobbledygook and pontifical hooey"- Newsweek
grandiloquent, overblown, pompous, pontifical, portentous
past the stage of full bloom
"overblown roses"
overblown
is similar to
having reached full natural growth or development
"a mature cell"
mature