IPA: /ˌdɪsəˈbiːdiəns/
KK: /dɪsəˈbiːdɪəns/
The act of not following rules or instructions given by someone in authority.
His disobedience led to serious consequences at school.
Disobedience → It is formed from "dis-" (meaning apart or away) and "obedience" (from Latin "obedientia", meaning compliance or submission). The word describes the state of being apart from or not complying with authority or rules.
Think of 'dis-' meaning apart and 'obedience' meaning compliance — disobedience is when someone is not complying with rules or authority.