sympathetic -- (of or relating to the sympathetic nervous system; "sympathetic neurons"; "sympathetic stimulation")
sympathetic -- (expressing or feeling or resulting from sympathy or compassion or friendly fellow feelings; disposed toward; "sympathetic to the students' cause"; "a sympathetic observer"; "a sympathetic gesture")
charitable, benevolent, kindly, sympathetic, good-hearted, openhearted, large-hearted -- (showing or motivated by sympathy and understanding and generosity; "was charitable in his opinions of others"; "kindly criticism"; "a kindly act"; "sympathetic words"; "a large-hearted mentor")
sympathetic, appealing, likeable, likable -- ((of characters in literature or drama) evoking empathic or sympathetic feelings; "the sympathetic characters in the play")
sympathetic -- (having similar disposition and tastes; "with their many similar tastes, he found her a most sympathetic companion")
harmonic, sympathetic -- (relating to vibrations that occur as a result of vibrations in a nearby body; "sympathetic vibration")