This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not active or tending to be active.

adj. Not functioning or operating; out of use: inactive machinery.

adj. Not being in continuous use or operation: an inactive brokerage account.

adj. Retired from duty or service.

adj. Chemistry Not readily participating in chemical reactions; inert.

adj. Biology Marked by the absence or reduction of activity, such as the ability to cause infection.

adj. Medicine Quiescent. Used especially of a disease.

adj. Physics Showing no optical activity in polarized light.

adj. Not active, temporarily or permanently

adj. Not functioning or operating; broken down

adj. Retired from duty or service

adj. Relatively inert

adj. Showing no optical activity in polarized light

adj. Not active; having no power to move; that does not or can not produce results; inert.

adj. Not disposed to action or effort; not diligent or industrious; not busy; idle.

adj. Not exhibiting any action or activity on polarized light; optically inactive; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active.

adj. Lacking biological or biochemical activity; not causing a specific biological or biochemical effect; -- said of substances such as enzymes which have lost their catalytic power, or of small molecules which are tested for some type of biological activity and found to lack that activity.

Not active or acting.

Marked by inaction or sluggishness; destitute of activity: as, an inactive existence; the inactive stage of insect life (that is, the period of metamorphosis, generally passed in concealment). Synonyms Inert, Lazy, etc. (see idle), passive, supine.

In chem., causing no rotation in the plane of polarized light.

adj. (chemistry) not participating in a chemical reaction; chemically inert

adj. (military) not involved in military operations

adj. lacking in energy or will

adj. (pathology) not progressing or increasing; or progressing slowly

adj. not exerting influence or change

adj. not engaged in full-time work

adj. not in physical motion

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

adj. lacking activity; lying idle or unused

adj. not active physically or mentally

"I may be misunderstanding the term inactive, of course."

unreactive    unresisting    resistless    supine    hands-off    latent    dead-end    flat    indolent    quiescent   

active    lively   

inactive molecules    optically inactive   

inactivity   

optically inactive   

inactively   

inert    idle    dull    slothful    indolent    lazy    sluggish    quiet    idler    do-nothing   

active    attractive    hyperactive    interactive    overactive    photorefractive    proactive    radioactive    reactive    refractive   

inert    sluggish    unable    dormant    passive    quiescent    torpid    apathetic    indifferent    unconcerned