a.

1. 否定的；否认的
   He gave me a negative answer.

   他给了我一个否定的答案。

2. 反面的；消极的
   Their criticism was not negative.

   他们的批评并不是负面的。

3. 【数】负的[Z]
   Minus ten is a negative quantity.

   -10是一个负量。

4. 【电】负的，阴极的[Z]
5. 【摄】底片的[Z]
6. 【医】阴性的[Z]
   The tests for hepatitis were negative.

   肝炎检查结果是阴性。

n.[C]

1. 否定，拒绝；否定的回答（或观点等）
   His answer to my request was a negative.

   我的请求遭到了他的拒绝。

2. 否定语
   In Latin, two negatives in the same sentence always amounted to an affirmation.

   过去拉丁文中两个否定总是相当于肯定。

3. 【数】负数
4. 【电】阴电，阴极板
5. 【摄】底片

vt.

1. 否定；否认；驳斥
   Father negatived our plan.

   父亲否定了我们的计划。

2. 否决；拒绝[H]
   The suggestion was negatived by the school board.

   这提议被教育委员会否决了。

   The bill was negatived.

   这议案遭到了否决。

3. 抵消

adj.

1. consisting in or characterized by the absence rather than the presence of something.
   ▸expressing or implying denial, disagreement, or refusal.
   ▸ [often in combination] not having a specified substance or condition:

   HIV-negative.
   ▸Grammar  & Logic  stating that something is not the case. Contrasted with affirmative and interrogative.
   ▸ [as exclam.] (especially in a military context) no.
2. undesirable or unwelcome.
   ▸pessimistic or discouraging.
3. (of a quantity) less than zero.
4. containing, producing, or denoting the kind of electric charge carried by electrons.
5. (of a photographic image) showing light and shade or colours reversed from those of the original.
6. Brit. relating to or denoting proposed legislation which will come into force after a specified period unless explicitly rejected in a parliamentary vote.

n.

1. a word or statement expressing denial, refusal, or negation.
   ▸a bad or unwelcome quality or aspect.
2. a negative photographic image from which positive prints may be made.

v.

1. reject, veto, or contradict.
2. render ineffective; neutralize.