Rigor is something strict, severe or demanding.
Keenness, as of pain; intensity
The condition or quality of being difficult:
A rude remark or behaviour.
The state or quality of being hard (in various senses)
The definition of happiness is the state of joy, peace and tranquility.
The state, quality, or habit of being kind
A thing or circumstance that causes ongoing or persistent suffering or difficulty:
Vicissitude is an unpredictable change in your luck or circumstances.
Something that obstructs progress and requires great effort to overcome
Find another word for asperity. In this page you can discover 41 synonyms, antonyms, idiomatic expressions, and related words for asperity, like: ill temper, abruptness, bitterness, sharpness, rigor, severity, difficulty, harshness, unevenness, ruggedness and roughness.