IPA: /ˌɛkstrəˈliːɡəl/
KK: /ˌɛkstrəˈliɡəl/
Something that is not allowed or controlled by the law.
The organization operated in an extralegal manner, ignoring official regulations.
Extralegal → It is formed from "extra-" (meaning outside) and "legal" (from Latin "legalis", meaning pertaining to the law). The word "extralegal" refers to actions or situations that are outside the law or not sanctioned by law.
Think of 'extra' meaning 'outside' and 'legal' relating to law — this helps you remember that 'extralegal' refers to something that is outside the law.
No commonly confused words.