Modifiers matching atmosphere:

• dry,
• rich,
• controlled,
• active,
• inert,
• pure,
• innocuous,
• carbonaceous,
• chemical,
• severe,
• rarefied,
• heavy,
• dense,
• indoor,
• explosive,
• thick,
• smoky,
• tropical,
• single,
• alkaline,
• neutral,
• corrosive,
• outer,
• clean,
• solar,
• molecular,
• harmful,
• cool,
• working,
• oxidative,
• gaseous,
• reactive,
• bad,
• saturated,
• hazardous,
• inexpensive,
• diffusing,
• dynamic,
• special,
• qualified,
• planetary,
• outdoor,
• wet,
• vital,
• industrial,
• closed,
• extraneous,
• dangerous,
• flammable,
• protective,
• warm,
• surrounding,
• isolated,

Simple categories matching reactive:

• atmosphere,
• metal,
• fuel,
• group,
• measure,
• object,
• allergen,
• alloy,
• problem,
• chemical,
• cell,
• material,
• gas,
• particle,
• element,
• solid,
• coating,
• halogen,
• derivative,
• binder,
• compound,
• sorbent,
• monomer,
• mineral,
• radical,
• paraffin,
• attitude,
• oxide,
• component,
• ketone,
• hydrocarbon,
• emotion,
• aldehyde,
• substance,
• entity,
• rock,
• portion,
• polymer,
• process,
• substrate,
• amine,
• diluent,
• sugar,
• carbonyl,
• change,
• carbohydrate,
• medium,
• passion,
• olefin,
• system,
• agent,
• halide,
• impurity,
• resin,
• silicide,
• state,
• experience,
• protein,
• concern,
• adhesive,
• food,
• species,
• product,
• solute,
• ingredient,
• sentiment,
• disease,
• mechanism,
• intermediate,
• constituent,
• battery,
• aggregate,
• behavior,
• atom,
• anhydride,
• precursor,
• molecule,
• complication,
• residue,
• foil,
• alkene,
• fluid,
• elements,
• contaminant,
• metabolite,
• mixture,
• surface,
• waste,