What is another word for heaviness?
Pronunciation: [hˈɛvinəs] (IPA) 
The word heaviness can be replaced with a few different synonyms, each with their own subtle nuance. One option is weightiness, which emphasizes the physical sense of heaviness. Burden or load convey a similar sense of weight, but with the added implication that the heaviness is difficult to carry or bear. Oppressiveness places the focus on the emotional or psychological weight that can feel overwhelming. Gravity suggests a heaviness that pulls things down, while density can imply a heaviness of substance or thought. Finally, ponderousness conveys a sense of sluggishness or lack of agility, as if the heaviness is slowing movement or progress.
