What is Negativity?

Negativity definition and meaning on Dictionary terms:
expressing or containing negation or denial: a negative response to the question.
refusing consent, as to a proposal: a negative reply to my request.
expressing refusal to do something: He maintained a negative attitude about cooperating.

prohibitory, as a command or order.
characterized by the absence of distinguishing or marked qualities or features; lacking positive attributes (opposed to positive): a dull, lifeless, negative character.
lacking in constructiveness, helpfulness, optimism, cooperativeness, or the like: a man of negative viewpoint.
encouraging or noting an unhealthy or unbalanced outlook toward something, especially toward sex or sexuality (used in combination):The song has a body-negative message.
being without rewards, results, or effectiveness: a search of the premises proved negative.
Mathematics, Physics. involving or noting subtraction; minus.measured or proceeding in the direction opposite to that which is considered as positive.

Photography. noting an image in which the brightness values of the subject are reproduced so that the lightest areas are shown as the darkest.
Electricity. of, relating to, or characterized by negative electricity.indicating a point in a circuit that has a lower potential than that of another point, the current flowing from the point of higher potential to the point of lower potential.

Medicine/Medical. (of blood, affected tissue, etc.) failing to indicate the presence of a specified medical condition or substance.(of a diagnostic test) failing to indicate the presence of the medical condition or substance tested for:Test results for skin cancer were negative.(of a person) not having a specified medical condition, or not having a specified substance in the body (often used in combination):She tested negative for a staph infection.I’m Rh-negative.

Chemistry. (of an element or group) tending to gain electrons and become negatively charged; acid.
Physiology. responding in a direction away from the stimulus.
of, relating to, or noting the south pole of a magnet.
Logic. (of a proposition) denying the truth of the predicate with regard to the subject.

a negative statement, answer, word, gesture, etc.: The ship signaled back a negative.
a refusal of assent: to answer a request with a negative.

the negative form of statement.
a person or number of persons arguing against a resolution, statement, etc., especially a team upholding the negative side in a formal debate.
a negative quality or characteristic.
disadvantage; drawback: The plan is generally brilliant, but it has one or two negatives.
Mathematics. a minus sign.a negative quantity or symbol.

Photography. a negative image, as on a film, used chiefly for making positives.
Electricity. the negative plate or element in a voltaic cell.
Archaic. a veto, or right of veto: The delegation may exercise its negative.

(used to indicate a negative response):