Alternative form of sympathetic

Of, related to, feeling, showing, or characterized by sympathy. / Showing approval of or favor towards an idea or action. / (of a person) Attracting the liking of others.

Owing to or showing evidence of sympathy, or affinity; happening through or demonstrating correspondences, whether occult or physiological.

The quality of being sympathetic.

Hyperactivity of the sympathetic nervous system

plural of sympathetic detonation

the vibration of a body, at its natural frequency, in response to that of a neighbouring one having that frequency; resonance

(military) Detonation of a charge by exploding another charge adjacent to it.

(dated) Invisible ink.

(alchemy, historical) A kind of powder supposed to be able to cure a wound if applied to the weapon that inflicted it, or to a portion of the bloodied clothes of the wounded person.