a.

1. 同情的；有同情心的
   She is sympathetic over what has happened.

   她对已发生的事抱有同情心。

2. 赞同的，支持的[F][（+to/towards）]
   They were quite sympathetic to our proposals.

   他们非常赞同我们的建议。

3. 合意的；和谐的
4. 交感神经的；交感性的
5. 【物】共振的，共鸣的

n.

1. 交感神经；交感神经系统

adj.

1. feeling, showing, or expressing sympathy.
   ▸showing approval of an idea or action.
2. likeable.
   ▸designed in a sensitive or fitting way.
3. Physiology  relating to or denoting the part of the autonomic nervous system supplying the internal organs, blood vessels, and glands, and balancing the action of the parasympathetic nerves.
4. of or denoting an effect which arises in response to a similar action elsewhere.