2. rigorousness的反义词

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1. excessive sternness

    e.g. severity of character
           the harshness of his punishment was inhuman
           the rigors of boot camp

    Synonym: severityseverenessharshnessrigorrigourrigourousnessinclemencyhardnessstiffness

2. something hard to endure

    e.g. the asperity of northern winters

    Synonym: asperitygrimnesshardshiprigorrigourseverityseverenessrigourousness