congested
US /kənˈdʒes.tɪd/
UK /kənˈdʒes.tɪd/

1.
so crowded with traffic or people as to impede or prevent freedom of movement
:
•
The city streets were heavily congested during rush hour.
•
The airport was congested with holiday travelers.
2.
(of a part of the body) abnormally full of blood or other fluid
:
•
His nose was completely congested from the cold.
•
The doctor said her lungs were congested.