IPA: //ʌnˈruːlɪnəs//
KK: /ʌnˈruːlɪnəs/
The condition of being difficult to control or manage, often characterized by disorderly behavior.
The teacher struggled with the unruliness of the students during the field trip.
Unruliness → It is formed from "un-" (meaning not) and "ruly" (from Middle English "rulie", meaning obedient or governed) and the suffix "-ness" (meaning the state of being). The word "unruliness" refers to the state of not being obedient or difficult to control.
Think of 'not' being obedient ('un-') and the state of that disobedience ('-ness'). This helps you remember that unruliness means being difficult to control.