adjective:1. Like-minded; compatible.2. Congenial; likable.
Via Italian or Spanish from Latin sympathia (sympathy), from Greek sympatheia, from sym- (together with) + pathos (emotion, suffering).
"Basil and tomatoes are simpatico in so many ways. One major trait they share is that neither should ever be refrigerated unless they have been chopped." - Bill Ward; Warm, Flavorful, Fresh Summer Food; The Arizona Daily Star (Tucson); Jul 29, 2009.