IPA: //ʌnɪmˈpiːdɪd//
KK: /ʌnɪmˈpidɪd/
Not blocked or hindered; able to move or proceed without any obstacles.
The river flowed unimpeded through the valley.
Unimpeded → It is formed from "un-" (meaning not) and "impeded" (from Latin "impedire", meaning to hinder or obstruct). The word "unimpeded" means not hindered or obstructed, allowing free movement or progress.
Think of 'not' ('un-') being in the way of something that is 'hindered' ('impeded'). This helps you remember that 'unimpeded' means free from any obstacles.