inactive, idle, inert, passive, supine mean not engaged in work or activity. inactive applies to anyone or anything not in action or in operation or at work. idle applies to persons that are not busy or occupied …

INERT definition: having no inherent power of action, motion, or resistance (active ). See examples of inert used in a sentence.

INERT meaning: 1. not moving or not able to move: 2. not energetic or interesting: 3. Inert substances do not…. Learn more.

Definition of inert adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

If you describe something as inert, you are criticizing it because it is not very lively or interesting.

1. having no inherent power of action, motion, or resistance (opposed to active): inert matter. 2. having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere. 3. having no …

Inert may refer to: Chemically inert, not chemically reactive Inert gas Noble gas, historically called inert gas Inert knowledge, information which one can express but not use Inert ingredient, a component of …

inert, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Oct 15, 2025 · inert (third-person singular simple present inerts, present participle inerting, simple past and past participle inerted) To fill with an inert gas to reduce the risk of explosion.

having no inherent power of action, motion, or resistance (opposed to active): inert matter. Chemistry having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere.