adj. 1. Of, expressing, feeling, or resulting from sympathy: a sympathetic glance.
2. Favorably inclined: not at all sympathetic to her proposal.
3. Agreeably suited to one's disposition or mood; congenial: sympathetic surroundings.
4. Easy to identify with and care about; likeable: a gloomy novel without a single sympathetic character.
5. Of, relating to, or acting on the sympathetic nervous system: a sympathetic neuron; sympathetic stimulation.
6. a. Relating to or being vibrations, especially musical tones, produced in one body by energy from a nearby vibrating body and having the same frequency as the vibration of the nearby body.
b. Emitting such vibrations: sympathetic strings.