Modifiers matching smell:

• common,
• animal,
• familiar,
• strong,
• distinct,
• strange,
• irritating,
• scented,
• pungent,
• bad,
• everyday,
• pleasant,
• natural,
• unwanted,
• distinctive,
• organic,
• basic,
• pure,
• unusual,
• sensitive,
• good,
• chemical,
• innocuous,
• characteristic,
• fresh,
• ordinary,
• popular,
• delicious,
• odd,

Simple categories matching innocuous:

• particle,
• item,
• substance,
• carrier,
• procedure,
• compound,
• object,
• smell,
• diluent,
• ingredient,
• appliance,
• atmosphere,
• material,
• waste,
• implement,
• powder,
• machine,
• creature,
• event,
• liquid,
• entity,
• molecule,
• part,
• location,
• document,
• thing,
• matter,
• behavior,
• metal,
• stimulus,
• solid,
• fluid,
• component,
• device,
• medication,
• substrate,
• drug,
• antigen,
• organism,
• article,
• papers,
• product,
• agent,
• gas,
• trauma,
• form,