This is the 17836th most frequent Polish word.
złośliwych
"Malicious" or "spiteful."
The word 'złośliwych' is used here as an adjective describing negative and harmful comments.
Usłyszałem wiele złośliwych komentarzy na ten temat.
I heard many malicious comments on this topic.
In this case, 'złośliwych' characterizes the intentions of people as malicious.
Nie lubię ludzi o złośliwych intencjach.
I don't like people with malicious intentions.
'Złośliwych' defines the actions performed as harmful and intentionally malevolent.