Akademik

unpleasantness
noun
1. the feeling caused by disagreeable stimuli; one pole of a continuum of states of feeling
Ant: ↑pleasantness
Derivationally related forms: ↑unpleasant
Hypernyms: ↑pain, ↑painfulness
2. the quality of giving displeasure
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the recent unpleasantness of the weather

Ant: ↑pleasantness
Derivationally related forms: ↑unpleasant
Hypernyms: ↑quality
Hyponyms:
nastiness, ↑offensiveness, ↑odiousness, ↑distastefulness, ↑awfulness, ↑dreadfulness, ↑horridness, ↑terribleness, ↑harshness, ↑roughness

Useful english dictionary. 2012.