200 entries under noun topic. ×
| asperity(severity, harshness, conformity, strictness) | |
| heartlessness(insensitivity, coldness) | |
| inflexibility(firmness, protection, severity, security) | |
| insensitivity(insensitivity, coldness) | |
| obduracy(severity, harshness, conformity, strictness) | |
| ruggedness | |
| ruthlessness(cruelty, harshness, insensitivity, sternness) | |
| stringency(easy, condition, discipline, firmness) | |
| sturdiness(support, control, change, strength) | |
| consistency(density, texture, thickness, impermeability) | |
| grimness(discipline, firmness, severity, harshness) | |
| hardship(abuse, difficulty, misery, suffering) | |
| insensibility | |
| insensitiveness | |
| obstinacy | |
| remorselessness(cruelty, impenitence) | |
| soundness(support, control, change, strength) | |
| stability(support, control, change, strength) | |
| sternness(easy, condition, discipline, firmness) | |
| stoniness(insensitivity, coldness) |
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| APA | Smart Define. (2015). hardness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hardness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hardness thesaurus" https://smartdefine.org/hardness/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, hardness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hardness/thesaurus/synonyms>. |
| MLA | Smart Define. "hardness thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/hardness/thesaurus/synonyms> |