This is the 612th most frequent Swedish word.
ung
Young.
In this case, 'ung' is used metaphorically to indicate that the idea is new or immature.
Det är en ung idé som fortfarande behöver utvecklas.
It is a young idea that still needs to be developed.
'Ung' forms the basis of the word 'ungdomar,' referring to young individuals or youth.
Ungdomar är fulla av energi och framtidstro.
Young people are full of energy and hope for the future.
Here, 'ung' describes a person's age, denoting a relatively short span of life lived so far.