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(Chemistry) (of a substance) not readily partaking in chemical reactions
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|Adj.||1.||unreactive - (chemistry) not reacting chemically|
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
reactive - participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
|2.||unreactive - not tending to react to stimulation|
insensitive - not responsive to physical stimuli; "insensitive to radiation"