Both Uses

negative
in
The Soloist
(Auto-generated)

She says patients like Nathaniel, who have been forcibly hospitalized or had negative reactions to medication, often aggressively resist any efforts to help them.†
Chpt 1.10 *

negative = bad or harmful
San Francisco is well ahead of Los Angeles, too, and Villaraigosa doesn't suffer negative comparisons well.†
Chpt 2.13

Definitions:

(1) (negative as in: had a negative effect)
bad or harmful
(2) (negative as in: negative feedback from customers)
to express criticism or disagreement, or (especially when talking over a radio or in a military setting) to say "no"
(3) (negative as in: a negative attitude)
pessimistic (emphasizing bad things) or disagreeable
(4) (negative as in: The test came back negative.)
did not find a condition or substance to be present
(5) (negative as in: a negative number)
less than zero
(6) (meaning too rare to warrant focus)
See a comprehensive dictionary for less common meanings of negative including some in the fields of electricity, physics, chemistry, medicine, photography, and grammar. Note that most non-technical senses of negative indicate that something is bad or lacking.