Longman Dictionary of Contemporary English homepage

Topic: CHEMISTRY

Date: 1600-1700
Language: Latin
Origin: iners 'unskilled, doing nothing', from ars 'skill, art'

inert

adjective
     
in‧ert
1 technicalHC not producing a chemical reaction when combined with other substances:
inert gases
2 literary not moving, or not having the strength or power to move:
He lay, inert, in his bed.
3 not willing to do anything:
The government was inert and inefficient.
inertness noun [uncountable]
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