Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb impede

2 senses of impede

Sense 1
impede, hinder -- (be a hindrance or obstacle to; "She is impeding the progress of our project")
       => prevent, keep -- (stop (someone or something) from doing something or being in a certain state; "We must prevent the cancer from spreading"; "His snoring kept me from falling asleep"; "Keep the child from eating the marbles")

Sense 2
obstruct, obturate, impede, occlude, jam, block, close up -- (block passage through; "obstruct the path")
       => impede, hinder -- (be a hindrance or obstacle to; "She is impeding the progress of our project")

Antonyms of adj impeded

1 sense of impeded

Sense 1
impeded -- (made difficult or slow; "we blamed our impeded progress on lack of money")

INDIRECT (VIA obstructed) -> unobstructed -- (free from impediment or obstruction or hindrance; "an unobstructed view")

Similarity of adj impeded

1 sense of impeded

Sense 1
impeded -- (made difficult or slow; "we blamed our impeded progress on lack of money")
       => obstructed (vs. unobstructed) -- (shut off to passage or view or hindered from action; "a partially obstructed passageway"; "an obstructed view"; "justice obstructed is not justice")