This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Excessive or unfairly harsh criticism.

n. Excessive criticism, or unjust severity or rigor of criticism; zoilism.

"The pedagogue, it is true, often expressed his disgust at the amusements and antics of the negroes, declaring they were unbecoming human beings and otherwise manifesting that disposition to hypercriticism, which is apt to distinguish one who is only a tyro in his own case."

zoilism   

querulousness    unearthliness    selectness    baronage    tartness    expensiveness    book-reading    acridity    inhospitality    contentedness