inerts

Chemically inactive materials

Inerts are substances that don't react chemically under normal conditions—gases like nitrogen or argon used in welding and manufacturing to prevent oxidation, or fillers in explosives and pharmaceuticals that add bulk without affecting the active ingredients.

In pyrotechnics, inerts are dummy rounds used for training: The squad practiced loading with inerts before handling live ammunition.

nonreactive

argon

Unreactive element eighteen

  • neonInert illuminating element
  • xenonElement fifty-four, noble gas
  • heliumLightest noble gas

krypton · radon · nitrogen · noble · unreactive · chemically · shielding · atmosphere · blanketing · purging

inactive

dormant

Inactive but capable

  • idleWithout activity or purpose
  • stagnantWithout movement or progress
  • torpidInactive and slow

sluggish · quiescent · passive · motionless · static · inoperative · unmoving · resting · listless · immobile

stable

equilibrium

State of balance

constant · durable · solid · secure · unwavering · persistent · fixed · immutable · unreactive · nonvolatile

filler

stuffing

Seasoned mixture for cavities

cushioning · insulation · ballast · dunnage · spacer · backfill · aggregate · sand · gravel · extender

Opposites
chemical reactivity

inertsreactants

Substances entering a reaction

reactives · oxidizers · volatiles · corrosives · combustibles

functional role in processes

inertscatalysts

Reaction accelerators

activators · initiators · promoters · active ingredients · drivers

Phrases
Family

inert, inertia, inertness, inertial, inertly

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Used worldwide · Timeless · Rated G