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Definition of inertness

inertness

/ɪˈnɝːt.nəs/
in · ert · ness
Adverb:inertly
•
Adjective:inert
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inertness Lexical Profile

inertness Game Scores & Validity

• noun

1

The state or quality of being physically motionless, inactive, or sluggish; a lack of vigor or responsiveness.

Example

"A heavy sense of inertness settled over the committee after hours of fruitless debate."

2

In chemistry and physics, the property of having little or no ability to react chemically with other substances.

Example

"The chemical inertness of helium makes it an ideal shielding gas for arc welding."

Synonyms
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Antonyms
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• Rhymes for inertness

• Nearby Words

inert
inertia
inertly
inertness
inescapable
inescapably
inessential

Word Origin & Etymology

Formed in English from the adjective 'inert' plus the suffix '-ness'. 'Inert' derives from the Latin 'iners' (genitive 'inertis'), meaning 'unskilled, inactive, or sluggish,' combining the privative prefix 'in-' ('not') with 'ars' ('skill' or 'art').

Cite this Entry

Wordmom. (2026). Definition of Inertness. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/inertness
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