IPA: /ˌʌn.kənˈtroʊld/
KK: /ʌnˈkənˌtroʊld/
Not managed or restrained; lacking control or regulation.
The wildfire spread in an uncontrolled manner, threatening nearby homes.
Uncontrolled → It is formed from "un-" (meaning not) and "controlled" (from Latin "controllare", meaning to check or verify). The word "uncontrolled" means not checked or verified, indicating a lack of restraint or regulation.
Think of 'not' ('un-') being applied to something that is 'checked' or 'verified' ('controlled'). This helps you remember that uncontrolled means something that is not kept in check.