Dictionary and Thesaurus

Definition of Inactive

• (a.) Not active; having no power to move; that does not or can not produce results; inert; as, matter is, of itself, inactive.
• (a.) Not disposed to action or effort; not diligent or industrious; not busy; idle; as, an inactive officer.
• (a.) Not active; inert; esp., not exhibiting any action or activity on polarized light; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid.

Synonyms of Inactive

• Nonoperational
• Dormant
• Passive
• Motionless
• Static
• Still

Antonyms of Inactive

• Active
• Operational
• Active
• Active
• Active
• Active
• Active
• Active

Homophones of Inactive