1feeling, showing, or expressing sympathy:she was sympathetic towards staff with family problemshe spoke in a sympathetic tone
2showing approval of or favour towards an idea or action:he was sympathetic to evolutionary ideas
3(of a person) attracting the liking of others:Hubbell is a more sympathetic character
(of a structure) designed in a sensitive or appropriate way:buildings that were sympathetic to their surroundings
4relating to or denoting the part of the autonomic nervous system consisting of nerves arising from ganglia near the middle part of the spinal cord, supplying the internal organs, blood vessels, and glands, and balancing the action of the parasympathetic nerves.
5relating to, producing, or denoting an effect which arises in response to a similar action elsewhere.
mid 17th century (in the sense 'relating to an affinity or paranormal influence', as in sympathetic magic): from sympathy, on the pattern of pathetic
sympathetic in other Oxford dictionaries
Definition of sympathetic in the US English dictionary