This is the 11207th most frequent Polish word.
groźnie
"Groźnie" means "menacingly" or "threateningly" in English.
Adverb describing the manner of looking.
Groźnie spojrzał na mnie, kiedy wspomniałem o jego sekrecie.
He looked at me threateningly when I mentioned his secret.
Adverb describing the manner of approaching.
Widząc groźnie nadciągające burzowe chmury, postanowiliśmy schronić się pod dachem.
Seeing the ominously approaching storm clouds, we decided to take shelter under a roof.
Adjective phrase describing the predators' appearance.