This is the 837th most frequent Danish word.
særdeles
Extremely; particularly; very.
Here, 'særdeles' intensifies the adjective, emphasizing a high level of skill.
Han er særdeles dygtig til at spille klaver.
He is exceptionally skilled at playing the piano.
In this sentence, 'særdeles' emphasizes the particular suitability or appeal of the book for a specific group.
Denne bog er særdeles interessant for historieentusiaster.
This book is especially interesting for history enthusiasts.
Here, 'særdeles' highlights the beneficial quality of the weather for a specific activity.