· (chemistry) not participating in a chemical reaction; chemically inert; "desired amounts of inactive chlorine"
· (pathology) not progressing or increasing; or progressing slowly
Antonym(s): active
· (military) not involved in military operations
Synonym(s): nonoperational
· not exerting influence or change
Antonym(s): active
· (of e.g. volcanos) not erupting and not extinct; "a dormant volcano"
Synonym(s): dormant
· lacking in energy or will; "Much benevolence of the passive order may be traced to a disinclination to inflict pain upon oneself"- George Meredith
Synonym(s): passive
· lacking activity; lying idle or unused; "an inactive mine"; "inactive accounts"; "inactive machinery"
Antonym(s): active
· not engaged in full-time work; "inactive reserve"; "an inactive member"
Antonym(s): active
· not active physically or mentally; "illness forced him to live an inactive life"; "dreamy and inactive by nature"
Antonym(s): active
· not in physical motion; "the inertia of an object at rest"
Synonym(s): motionless, static, still