Connected is a related term of supplementary.
As adjectives the difference between connected and supplementary
is that connected
is (usually with "well-"):
having favorable rapport with a powerful entity while supplementary
is additional; added to supply what is wanted.
As a verb connected
(usually with "well-"): Having favorable rapport with a powerful entity.
(mathematics, topology, of a topological space) That cannot be partitioned into two nonempty open sets.
(mathematics, graph theory, of a directed graph) Having a path, either directed]] or undirected, connecting every pair of [[vertex, vertices.
Additional; added to supply what is wanted.