(countable) A negative is a photographic image with reversed colours (e.g., black instead of white).
Prints are then made from the negatives, and in the case of the B&W I may either tint or tone the final print.
(countable) A negative is a word, sentence, answer, etc. that means no.
When I asked if we could go next week, the answer was a negative.
(countable) A negative is something that is harmful, sad, or otherwise not good.
Right now in Korea there is a negative connected with anything Japanese.
(countable) A negative is a test result that did not find what it was testing for.
In out test group there were 20 negatives and only one positive.
(countable)(photography) A negative is a small picture with the colors inverted. Negatives are made on film, then photographs are made from the negatives.
We saved the negatives and used to make more pictures later.