Akademik

heaviness
noun
1. the property of being comparatively great in weight (Freq. 2)
-

the heaviness of lead

Syn: ↑weightiness
Ant: ↑lightness
Derivationally related forms: ↑weighty (for: ↑weightiness), ↑heavy
Hypernyms: ↑weight
Hyponyms: ↑heft, ↑heftiness, ↑massiveness, ↑ponderousness, ↑ponderosity, ↑preponderance
2. persisting sadness
-

nothing lifted the heaviness of her heart after her loss

Derivationally related forms: ↑heavy
Hypernyms: ↑sadness, ↑unhappiness
3. an oppressive quality that is laborious and solemn and lacks grace or fluency
-

a book so serious that it sometimes subsided into ponderousness

-

his lectures tend to heaviness and repetition

Syn: ↑ponderousness
Derivationally related forms: ↑heavy, ↑ponderous (for: ↑ponderousness)
Hypernyms: ↑uninterestingness
4. used of a line or mark
Syn: ↑thickness
Derivationally related forms: ↑heavy, ↑thick (for: ↑thickness)
Hypernyms: ↑wideness, ↑broadness
5. unwelcome burdensome difficulty
Syn: ↑burdensomeness, ↑onerousness, ↑oppressiveness
Derivationally related forms: ↑oppressive (for: ↑oppressiveness), ↑onerous (for: ↑onerousness), ↑heavy, ↑burdensome (for: ↑burdensomeness)
Hypernyms: ↑difficulty, ↑difficultness

Useful english dictionary. 2012.