grown-upyears

noun
UK /ˈɡrəʊnʌp jɪəz/
US /ˈɡroʊnʌp jɪrz/

The time when you are an adult and not a kid anymore.

She spent her grown-upyears working as a nurse in the city.


OTHER MEANINGS

2. The years of a person's life after they finish growing.

His grown-upyears were much calmer than his wild youth.

3. A period in a project or idea when it is fully developed.

The company's grown-upyears brought steady profits and fewer risks.

4. The later, more serious stage of something that started small.

The band's grown-upyears produced quieter, more thoughtful songs.