This is the 201st most frequent Slovenian word.
nekoliko
"Several" or "somewhat."
Here, 'nekoliko' indicates a small degree or extent of change, emphasizing a slight shift in feeling or atmosphere.
Pogovor je postal nekoliko neprijeten.
The conversation became slightly uncomfortable.
In this case, 'nekoliko' implies a modest increase in effort, subtly softening the suggestion for additional exertion.
Moral bi se nekoliko bolj potruditi.
You should try a little harder.
The word 'nekoliko' conveys slight moderation in intensity, similar to 'somewhat' in English.