congested.
sound deadening, insulation, furniture feet felt is soft and filled with air so it doesn't scratch surfaces and limits heat/cold transfer and reduces sound transmission
Felt
Whatever the rest of Europe felt, they felt it too. Britain, cold war wise, was part of Europe.
It feels like ice , and glass like . · The glass filled with cold water and ice cubes felt cold on the outside as well.
In the Cold War Bulgaria was part of the Eastern (that is, Soviet) Bloc.
The house had hot and cold running water. When I had the flu, I alternately felt hot and cold.
Adverb
The noun cold is a concrete noun because cold can be felt physically. The word cold is also an adjective, a word that describes a noun.
The opening of the Berlin Wall is felt by most people to be the end of the Cold War.
metaphor
Felt is a good insulator, so it can help keep things cold by trapping air and preventing heat transfer. When used as a lining inside a cooler or lunch bag, felt can help maintain the internal temperature by reducing the exchange of heat with the external environment.
It means you should research what were the causes of the tensions felt by the various sides during the 'cold war'.