nalegający in English:

Why are you so insistent that we leave tonight?

a loud insistent voice from somewhere deep in my brain interrupted-there's always a first time for everything.

They were insistent on having a contract for the work.

I'm sorry, Miss Rochev, but he was very... insistent. / I didn't want to take anything, but Howard was very insistent.

In the Netherlands, if a child is too insistent on asking for a cookie, he might be punished and get no cookie.