This is the 8652nd most frequent Russian word.
отрицательная
"Отрицательная" means "negative" in English.
Here, 'отрицательная' is used to describe the harsh or unfavorable nature of the weather, synonymous with negative.
Погода сегодня отрицательная — сильный мороз.
The weather is negative today — severe frost.
In this context, 'отрицательная' is used in a biomedical or medical test setting to mean a result that does not show the presence of a certain condition.
Её тест на COVID оказался отрицательным.
Her COVID test was negative.
Here, 'отрицательная' is applied to people's judgments, expressing a critical or unfavorable evaluation of something.