(noun) weather unsuitable for outdoor activities. Synonyms: bad weather, inclementness.
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Noun Definition 1
(noun) excessive sternness. Synonyms: severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, hardness, stiffness. Examples: "Severity of character." "The harshness of his punishment was inhuman." "The rigors of boot camp."