IPA: /ʌnˈfɪltəd/
KK: /ʌnˈfɪltərd/
Not having gone through a process to remove unwanted parts or impurities.
She prefers unfiltered coffee for its rich flavor.
Unfiltered → It is formed from "un-" (meaning not) and "filtered" (from the Latin root "filtrare", meaning to strain or pass through). The word "unfiltered" means not having been strained or passed through a filter, indicating that something is in its original, unrefined state.
Think of 'not' ('un-') having been 'strained' ('filtered') — that's why unfiltered means something that hasn't been refined or cleaned.