IPA: /nɒnˈhaɪəˌrɑːkɪkəl/
KK: /nɑnˈhaɪərɑrkɪkəl/
Describing a system or organization where all members have equal authority and there is no ranking or hierarchy.
In a nonhierarchical organization, everyone is encouraged to share their ideas equally.
Nonhierarchical → It is formed from "non-" (meaning not) and "hierarchical" (from Greek "hierarchia", meaning rule of a high priest or sacred order). The word "nonhierarchical" means not arranged in a hierarchy or not following a ranked order.
Think of 'not' ('non-') being combined with a system of 'ruling' ('hierarchia') to remember that 'nonhierarchical' refers to a structure that does not follow a ranked order.