Synonyms: asperity, severeness, severity, hardship, grimness, rigor, rigorousness, rigour, rigourousness
Definition: something hard to endure
Usage: the asperity of northern winters
Similar words: difficultness, difficulty
Definition: the quality of being difficult
Usage: they agreed about the difficulty of the climb
Synonyms: luridness, gruesomeness, grimness, ghastliness
Definition: the quality of being ghastly
Similar words: frightfulness
Definition: the quality of being frightful