inactive

/ɪnˈæktɪv/

/ˌɪˈnæktɪv/

[adjective]

inactive

[ADJECTIVE]

not engaging in physical activity or exercise

synonyms : motionless

static

still

not engaging in chemical reactions with other substances

(pathology) not progressing or increasing; or progressing slowly

antonyms : active

(military) not involved in military operations

synonyms : nonoperational

antonyms : operational

not active physically or mentally

antonyms : active

lacking activity; lying idle or unused

antonyms : active

lacking in energy or will

synonyms : passive

antonyms : active

(of e.g. volcanos) not erupting and not extinct

synonyms : dormant

antonyms : active

(of drugs or diseases) having no effect

antonyms : active

not engaged in full-time work

antonyms : active

Examples

1. The marathon runner was surprised to learn that his friend, who had always been overweight and inactive, had outlived many of their healthier peers, proving that a creaking door hangs longest.

2. Inactive vaccines like polio or hepatitis A use dead pathogens that have been killed by heat or chemicals.

3. Their frontal lobes are virtually inactive.

4. Inactive Decisions Many intelligent people are indecisive.