This is the 5036th most frequent Polish word.
poważnym
"Serious" or "significant."
The word 'poważnym' indicates 'serious' as a quality of the person, emphasizing their demeanor or attitude.
Jan jest bardzo poważnym człowiekiem.
John is a very serious person.
Here, 'poważnym' is used to describe 'zagrożeniem' (threat), emphasizing its gravity or significance.
To jest poważnym zagrożeniem dla środowiska.
This is a serious threat to the environment.
Although 'poważnym' is not directly in this sentence, it would be used to describe 'kroki' in context, meaning significant or considerable actions.