Answer:

negative

Answer	Crossword Clue
NEGATIVE	Contradictory
NEGATIVE	1,000 in the phrase "No, no a thousand times no!" is an example of a ... number
NEGATIVE	Below zero

NEGATIVE	Like certain battery terminals
NEGATIVE	Unfavorable, as reviews
NEGATIVE	No.
NEGATIVE	Camera product.
NEGATIVE	Photographic film.
NEGATIVE	Film.
NEGATIVE	No deal.
NEGATIVE	Debater's position

NEGATIVE	Debating side
NEGATIVE	Photography plate
NEGATIVE	Sculptor's reverse impression
NEGATIVE	Like some campaign ads
NEGATIVE	Indigenous
NEGATIVE	Pessimistic
NEGATIVE	Type of charge
NEGATIVE	Charge on an electron