Antonyms of adj nonhierarchical

1 sense of nonhierarchical

Sense 1
nonhierarchical (vs. hierarchical), nonhierarchic -- (not classified hierarchically)

hierarchical (vs. nonhierarchical), hierarchal, hierarchic -- (classified according to various criteria into successive levels or layers; "it has been said that only a hierarchical society with a leisure class at the top can produce works of art"; "in her hierarchical set of values honesty comes first")
        => class-conscious, stratified -- ((used of society) socially hierarchical; "American society is becoming increasingly stratified")
        => gradable -- (capable of being graded (for quality or rank or size etc.))
        => graded, ranked, stratified -- (arranged in a sequence of grades or ranks; "stratified areas of the distribution")
        => vertical -- (of or relating to different levels in a hierarchy (as levels of social class or income group); "vertical social mobility")

Similarity of adj nonhierarchical

1 sense of nonhierarchical

Sense 1
nonhierarchical (vs. hierarchical), nonhierarchic -- (not classified hierarchically)
       => ungraded, unordered, unranked -- (not arranged in order hierarchically)