This is the 12764th most frequent Polish word.
nieuwagi
"Lack of attention" or "carelessness."
In this sentence, 'nieuwagi' denotes a lack of proper attention or care, leading to an error.
Popełniłem błąd z powodu nieuwagi.
I made a mistake due to inattention.
Here, 'nieuwagi' is contrasted with 'uwagi' (attention), showing how inattention needs to be avoided for understanding the new rules.
Nowe przepisy wymagają większej uwagi, aby uniknąć nieuwagi.
New regulations require increased attention to avoid inattention.
The sentence presents 'nieuwagi' as a state that can be prevented by improving one's concentration.