This is the 12410th most frequent Russian word.
категорически
"Categorically" – absolutely; unconditionally; without exception.
The word 'категорически' is used here to strongly emphasize the stance against violence.
Я категорически против любого насилия.
I am categorically against any violence.
Here 'категорически' highlights the definitive and unwavering nature of the refusal to participate.
Он категорически отказался участвовать в проекте.
He categorically refused to participate in the project.
In this sentence, 'категорически' underscores the assertive and uncompromising manner in which the opinion is conveyed.