As nouns the difference between grouchiness and annoyance
is that grouchiness is the characteristic or quality of being grouchy while annoyance is (countable) that which annoys.
grouchiness
English
Noun
(-)
The characteristic or quality of being grouchy
annoyance
English
Alternative forms
* annoyaunce (obsolete)
Noun
(
wikipedia annoyance)
(countable) That which annoys.
(countable) An act or instance of annoying.
(uncountable) The psychological state of being annoyed or irritated.
Synonyms
* nark