IPA: //nʌnˈiːkwɪlɪbriəm//
KK: /nʌnˈiːkwɪlɪbriəm/
A state in which forces or influences are not balanced, leading to instability or change.
The system was in a state of nonequilibrium, causing unpredictable behavior.
Nonequilibrium → It is formed from "non-" (meaning not) and "equilibrium" (from Latin "aequilibrium", meaning equal balance). The word "nonequilibrium" refers to a state that is not in balance or equilibrium.
Think of 'not' ('non-') being applied to a state of 'balance' ('equilibrium') — that's why nonequilibrium means a state that is not balanced.