nastiness

nouns

a state characterized by foul or disgusting dirt and refuse
filth, filthiness, foulness, nastiness
is derived from
nasty
malevolence by virtue of being malicious or spiteful or nasty
bitchiness, cattiness, nastiness, spite, spitefulness
is derived from
nasty
is derived from
nasty
the quality of being unpleasant
"I flinched at the nastiness of his wound"
nastiness
is derived from
nasty
antonym
niceness
is a type of (narrower)
the quality of giving displeasure
"the recent unpleasantness of the weather"
unpleasantness
is an attribute of
offensive or even (of persons) malicious
"in a nasty mood"; "a nasty accident"; "a nasty shock"; "a nasty smell"; "a nasty trick to pull"; "Will he say nasty things at my funeral?"- Ezra Pound
awful, nasty