IPA: /nɒnˈdɪʒən/
KK: /nɑnˈdɪʒən/
A situation where no decision is made or a choice is not taken.
The team's nondecision about the project led to confusion among the members.
Nondecision → It is formed from "non-" (meaning not) and "decision" (from Latin "decisio", meaning a cutting off or settlement). The word "nondecision" refers to the state of not making a decision or the absence of a decision.
Think of 'not' ('non-') making a 'cutting off' or 'settlement' ('decisio') — that's why nondecision means the absence of a decision.