Rigorousness definitions

Rigorousness

1) Asperity 2) Difficultness 3) Difficulty 4) Grimness 5) Hardship 6) Rigor 7) Rigour 8) Severity
Found on https://www.crosswordclues.com/clue/rigorousness

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Rigorousness

1) Asperity 2) Harshness 3) Rigor 4) Severity
Found on https://www.crosswordclues.com/clue/rigorousness

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