Negative

a reply of denial

a piece of photographic film showing an image with light and shade or colors reversed

vote against

characterized by or displaying negation or denial or opposition or resistance

expressing or consisting of a negation or refusal or denial

having the quality of something harmful or unpleasant

not indicating the presence of microorganisms or disease or a specific condition

reckoned in a direction opposite to that regarded as positive

less than zero

designed or tending to discredit, especially without positive or helpful suggestions

having a negative charge

involving disadvantage or harm