say it: in-AK-tiv
inactive is an adjective meaning "(chemistry) not participating in a chemical reaction; chemically inert". It carries 10 recorded senses.
(chemistry) not participating in a chemical reaction; chemically inert
“desired amounts of inactive chlorine”
chemistry
pathology
lacking in energy or will
“Much benevolence of the passive order may be traced to a disinclination to inflict pain upon oneself”
not active physically or mentally
“illness forced him to live an inactive life”
“dreamy and inactive by nature”
not in physical motion
“the inertia of an object at rest”
Definitions, synonyms and semantic relations for inactive come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.