This is the 5542nd most frequent Russian word.
полноценно
Fully; completely; adequately.
Here, 'полноценно' is used adverbially to describe the completeness or full extent of the enjoyment experienced.
Я полноценно насладился отпуском на берегу моря.
I fully enjoyed my vacation by the sea.
In this sentence, 'полноценно' emphasizes the importance of rest being complete and adequate for effectiveness.
Для успешной работы важно полноценно отдыхать.
To work successfully, it's important to rest fully.
Here, 'полноценно' reflects the adequacy and thoroughness of the preparation done for the examination.