This is the 5427th most frequent Spanish word.
negativa
"Negativa" means "denial" or "refusal" in English.
Here, "negativa" is used as a noun, meaning 'the act of rejecting or saying no'.
Su respuesta fue una negativa rotunda.
Her response was a resounding no.
In this sentence, "negativa" functions as an adjective, describing the nature of the attitude as unfavorable or pessimistic.
Tuvieron una actitud negativa hacia el cambio.
They had a negative attitude towards change.
Here, "negativa" is again a noun, specifically referring to the 'action of rejecting or denying acceptance'.