hardness

Fetched 2026-10-26 (cache).

Synonyms: harness, hardiness, harkness, hardnews, hartness, wariness, sadness, madness, harmless, darkness, chariness

Antonyms: harness, hardiness, harkness, hardnews, hartness, wariness, sadness, madness, harmless, darkness, chariness

Related words from Datamuse; suggestions, not definitions.

Noun

1. The quality of being [[hard]].
2. An instance of this quality; [[hardship]].
3. {{lb|en|inorganic chemistry}} The quantity of [[calcium carbonate]] dissolved in water, usually expressed in parts per million (ppm).
4. The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material.
5. {{lb|en|physics}} The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation.
6. The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack.
7. {{lb|en|countable|engineering}} A measure of how hard a material is.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.