This is the 3092nd most frequent Spanish word.
ninguna
"None" or "not any."
The word 'ninguna' is used as an indefinite adjective accompanying the noun 'pregunta' to indicate an absence or lack in a negative context.
No tengo ninguna pregunta sobre el tema.
I have no questions about the topic.
Here, 'ninguna' acts as an indefinite adjective modifying 'decisión' to emphasize that not a single instance occurred.
Ninguna decisión fue tomada antes de discutirlo en el grupo.
No decision was made before discussing it in the group.
In this case, 'ninguna' is used as an indefinite pronoun, meaning 'none' and referring to an absence among a group.