negative

adjective

1
involving disadvantage or harm
minus (or negative) factors
2
expressing or consisting of a negation or refusal or denial
3
having a negative charge
electrons are negative
4
designed or tending to discredit, especially without positive or helpful suggestions
negative criticism
5
having the quality of something harmful or unpleasant
ran a negative campaign
delinquents retarded by their negative outlook on life
6
characterized by or displaying negation or denial or opposition or resistance; having no positive features
a negative outlook on life
a colorless negative personality
7
less than zero
a negative number
8
reckoned in a direction opposite to that regarded as positive
negative interest rates
9
not indicating the presence of microorganisms or disease or a specific condition
the HIV test was negative

1
a piece of photographic film showing an image with light and shade or colors reversed
2
a reply of denial
he answered in the negative

1
vote against; refuse to endorse; refuse to assent
The President vetoed the bill

Also useful for “negative”:Scrabble— High-value letters — see what it scores