Dictionary and Thesaurus

Definition of Inert

• (a.) Destitute of the power of moving itself, or of active resistance to motion; as, matter is inert.
• (a.) Indisposed to move or act; very slow to act; sluggish; dull; inactive; indolent; lifeless.
• (a.) Not having or manifesting active properties; not affecting other substances when brought in contact with them; powerless for an expected or desired effect.

Synonyms of Inert

• Indolent
• Slothful
• Lazy
• Sluggish
• Heavy
• Inactive
• Passive
• Dormant.

Antonyms of Inert

• Active
• Energetic
• Alert
• Brisk.

Homophones of Inert