Word Type

Noun

The word "hardness" can be used as a noun.

Word Relationships

Opposites (Antonyms)

softness softness

Derived Terms

Knoop hardness Vickers hardness hardness of hearing macrohardness microhardness nanohardness total hardness water hardness

Derived From

hard

Context

inorganic chemistry physics

Broader Terms (Hypernyms)

body consistence consistency difficultness difficulty insensitiveness insensitivity physical property quality sternness strictness substance

Narrower Terms (Hyponyms)

metallicness rockiness stoniness

Type Of (IsA)

consistency difficulty disposition mechanical property multi dimensional quantity non aspectual quantity quality tangible physical quantity

Related Terms

bone cement concrete crystal diamond flint granite hard harden hardiness iron marble metal oak rock steel stone

Related Terms

calcium carbonate hard hardiness hardship

Synonym Network

severity unfeelingness

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.