inert

About 3.37 uses per million words.

Meaning

1. adjective Unable to move or act; inanimate.
2. adjective Sluggish or lethargic.
3. adjective Not readily reacting with other elements or compounds.
4. adjective Having no therapeutic action.
5. noun A substance that does not react chemically.
6. verb To fill with an inert gas to reduce the risk of explosion.

Similar words

nonmoving inactive unmoving indifferent torpid neutral sluggish unreactive lifeless still

Often followed by

gas and gases matter atmosphere material mass in to

Word family

inertly inertness inertnesses inerts