Modifiers matching email:

• harmful,
• undesirable,
• informational,
• important,
• unwanted,
• legitimate,
• bad,

Simple categories matching undesirable:

• activity,
• surface,
• object,
• behavior,
• content,
• result,
• emotion,
• artifact,
• trait,
• substance,
• action,
• thought,
• volatile,
• bird,
• rodent,
• sediment,
• lipid,
• contaminant,
• occurrence,
• state,
• constituent,
• motive,
• complication,
• incident,
• event,
• code,
• defect,
• animal,
• attribute,
• flora,
• outcome,
• product,
• particle,
• material,
• behaviour,
• filler,
• organism,
• bacteria,
• fauna,
• property,
• industry,
• metal,
• cation,
• item,
• area,
• reaction,
• sensation,
• sector,
• precipitate,
• stabilizer,
• process,
• cell,
• mammal,
• residue,
• flaw,
• character,
• route,
• cause,
• thing,
• scene,
• experience,
• pest,
• part,
• taste,
• zone,
• alteration,
• pattern,
• vegetation,
• mutation,
• adduct,
• creature,
• feature,
• mineral,
• condition,
• growth,
• use,
• email,
• component,
• change,
• waste,
• matter,
• chemical,
• algae,
• motion,
• compound,
• practice,
• deposit,
• location,
• mail,
• layer,
• status,
• propensity,
• pathogen,
• microbe,
• trouble,
• adaptation,
• phenomenon,
• pollutant,
• situation,
• formation,
• solid,
• consequence,
• ingredient,
• software,
• communication,
• agent,
• bug,
• lie,
• conduct,
• elements,
• angle,
• odour,
• characteristic,
• light,
• fluid,
• weather,
• symptom,
• quality,
• noise,
• phase,
• website,
• vermin,
• facility,
• nutrient,
• passion,
• gas,
• microorganism,
• metabolite,
• plant,