| rigour |
| inclemency(noun, harshness, conformity, strictness, sternness) |
| rigorousness(noun, easy, condition, discipline, firmness) |
| sternness(noun, easy, condition, violence, discipline) |
| strictness(noun, easy, condition, discipline, firmness) |
| asperity(noun, force, passion, energy, rise) |
| cruelty |
| gravity(noun, concern, importance, harshness, strictness) |
| stringency(noun, easy, condition, discipline, firmness) |
| acrimony(noun, force, passion, rise, anger) |
| astringency(noun, simplicity, dullness, sharpness, bitterness) |
| hardship(noun, abuse, misery, suffering, cruelty) |
| sharpness(noun, force, attack, power, passion) |
| acuteness(noun, force, attack, power, passion) |
| oppressiveness(noun, difficulty, oppression, domination, dictatorship) |
| plainness(noun, ease, simplicity, dullness, facility) |
| rigidity(noun, easy, condition, discipline, firmness) |
| seriousness(noun, concern, importance, harshness, gravity) |
| simplicity(noun, ease, dullness, facility, harshness) |
| roughness(noun, force, attack, power, disorder) |