Synonyms|169Antonyms|0|Broader|5Narrower|15Related|246

26 entries under hardness topic. ×

9
crystal(noun, mineral)
5
flint
3
stone
3
board
3
granite
3
marble
2
crag
2
fossil
2
pebble
2
adamant
2
block
2
bone
2
brick
2
cartilage
2
cement
2
concrete
2
hardware
2
iron
2
nail
1
rock
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APASmart Define. (2015). quartz thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/quartz/thesaurus/synonyms
ChicagoSmart Define. 2015. "quartz thesaurus" https://smartdefine.org/quartz/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, quartz thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/quartz/thesaurus/synonyms>.
MLASmart Define. "quartz thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/quartz/thesaurus/synonyms>