The Collaborative International Dictionary
nonhierarchical
nonhierarchic \nonhierarchic\ nonhierarchical \nonhierarchical\adj. Not arranged in a hierarchy. Opposite of hierarchical.
Wiktionary
nonhierarchical
a. Classified or arranged so that a group or person has the same authority as everyone else; not hierarchical.
WordNet
nonhierarchical
adj. not classified hierarchically [syn: nonhierarchic] [ant: hierarchical]