Adolescence /ˌæd

vital /ˈvaɪ.t ə l/ /-t ̬ ə l/ adjective IMPORTANT
1. necessary for the success or continued existence of something; extremely important
A strong opposition is vital to a healthy democracy.
She had found out some information of vital importance .
The kidney plays a vital role/part in the removal of waste products from the blood.
[ + that ] It's absolutely vital that you do exactly as I say.
[ + to infinitive ] It is vital to get medical supplies to the area as soon as possible.
vital /ˈvaɪ.t ə l/ /-t ̬ ə l/ adjective LIVELY
2. formal approving energetic
He had never felt so vital and full of life.
3. formal relating to life
worthwhile /ˌwɜːθˈwaɪl/ /ˌwɝːθ-/ adjective
useful, important or good enough to be a suitable reward for the money or time spent or the effort made
She considers teaching a worthwhile career.
The time and expense involved in keeping up to date with all the changes has been worthwhile.
If you need him on this project, you've got to make it financially worthwhile for him (= you will have to pay him a suitable amount of money for the amount of work involved) .
confront /kənˈfrʌnt/ verb [ T ]
to face, meet or deal with a difficult situation or person
As she left the court, she was confronted by angry crowds who tried to block her way.
It's an issue we'll have to confront at some point, no matter how unpleasant it is.
I thought I would remain calm, but when I was confronted with/by the TV camera, I became very nervous.
contaminate /kənˈtæm.ɪ.neɪt/ verb [ T ]
to make something less pure or make it poisonous
Much of the coast has been contaminated by nuclear waste.
The food which had been contaminated was destroyed.