Etymology: New Latin sympatheticus, from Latin sympathia sympathy
Date: 1644
1: existing or operating through an affinity, interdependence, or mutual association 2 a: appropriate to one's mood, inclinations, or disposition b: marked by kindly or pleased appreciation <the biographer's approach was sympathetic> 3: given to, marked by, or arising from sympathy, compassion, friendliness, and sensitivity to others' emotions <a sympathetic gesture> 4: favorably inclined :approving<not sympathetic to the idea> 5 a: showing empathy b: arousing sympathy or compassion <a sympathetic role in the play> 6 a: of or relating to the sympathetic nervous system b: mediated by or acting on the sympathetic nerves 7: relating to musical tones produced by sympathetic vibration or to strings so tuned as to sound by sympathetic vibration