IPA: /əˈnɑːrkɪkəl/
KK: /əˈnɑrkɪkəl/
Relating to or characterized by a lack of order or control, often leading to chaos or disorder.
The protest turned anarchical as people began to ignore the rules and create their own chaos.
Anarchical is formed from "an-" (meaning without) and "archos" (from Greek, meaning ruler or leader) and the suffix "-ical" (meaning pertaining to). The word describes a state or condition that is without a ruler or leader, hence chaos or disorder.
Think of 'without' ('an-') a 'ruler' ('archos') to remember that 'anarchical' refers to a state of disorder or lack of governance.