A Quick and Simple Dictionary

negative

1. Adjective.  not positive or neutral.
2. Adjective.  pessimistic; not tending to see the bright side of things. (Often used pejoratively.).
3. Adjective.  damaging; undesirable; unfavourable.
4. Adjective.  (mathematics) of number, less than zero.
5. Adjective.  (physics) of electrical charge of an electron and related particles (defdate, from the 18th c.) .
6. Adjective.  (linguistics) (logic) denying a proposition.
7. Noun.  refusal or withholding of assents; veto, prohibition (defdate, from the 15th c.) .
8. Noun.  (photography) an image in which dark areas represent light ones, and the converse (defdate, from the 19th c.) .
9. Noun.  (grammar) a word that indicates negation.
10. Noun.  (mathematics) a negative quantity.
11. Noun.  (weightlifting) : A rep performed with weight in which the muscle begins at maximum contraction and is slowly extended; a movement performed using only the eccentric phase of muscle movement.
12. Verb.  To veto.
13. Verb.  To contradict.
14. Verb.  To disprove.