asperity: severity of tone, manner, or temper; roughness; harshness
    asperity ------ roughness, severity; bitterness or tartness
    asperity ------ sharpness; roughness; severity (of temper or weather); Ex. asperities of a Russian winter
    asperity ------severity; harshness; irritability
    asperity ------ biting in whit-negative
    asperity ------ sharpness (of temper)
    These remarks, spoken with asperity, stung the boys to whom they had been directed.
    asperity ------ harshness; roughness
    asperity-----sharpness; roughness; severity (of temper or weather); Ex. asperities of a Russian winter
    12 apserity <> mildness
    asperity n.嚴(yán)酷, 粗暴, 刻薄
    839. asperity 
    depth
    mildness
    imprecision
    leisure
    indifference
    粗魯(艱苦)
    深度
    溫和
    不精確
    閑暇
    無(wú)動(dòng)于衷，冷漠
    Answer:
    asperity<>mildness of temper 嚴(yán)酷<>脾氣溫和
    asperity roughness harshness ill temper irritability
    Synonyms: harshness, sharpness
    The asperity with which she spoke revealed her anger about the situation.
    The man used asperity to frighten the girl out of going.
    The asperity of the winter had most everybody yearning for spring.