Modifiers matching time:

• over,
• administrative,
• real,
• astronomical,
• moving,
• visible,
• meaningful,
• measurable,
• busy,
• stressful,
• geological,
• free,
• longest,
• important,
• longer,
• informal,
• sacred,
• critical,
• shiny,
• convenient,
• dry,
• additional,
• routine,
• personal,
• limited,
• starting,
• social,
• emotional,
• long,
• popular,
• fixed,
• stable,
• layer,
• related,
• discrete,
• working,
• short,
• geologic,
• up,
• environmental,
• out,
• quiet,
• future,
• external,
• hard,
• celebratory,
• unstructured,
• crucial,
• vulnerable,
• contemporary,
• shared,
• absolute,
• special,
• spare,
• static,
• miscellaneous,
• valuable,
• individual,
• current,
• hectic,
• persistent,
• romantic,
• unsocial,
• urgent,
• dead,
• particular,
• necessary,
• same,
• specified,
• domesticated,
• institutional,
• difficult,
• prolonged,

Simple categories matching persistent:

• mineral,
• symptom,
• dirt,
• time,
• condition,
• infection,
• pesticide,
• disease,
• bacteria,
• difficulty,
• information,
• insecticide,
• lesion,
• headache,
• distress,
• discomfort,
• organophosphate,
• material,
• substrate,
• herbicide,
• volatile,
• substance,
• upset,
• consequence,
• virus,
• event,
• chemical,
• illness,
• matter,
• circumstances,
• state,
• aggression,
• organism,
• contaminant,
• retrovirus,
• complaint,
• affliction,
• abnormality,
• injury,
• pathogen,
• pain,
• pollutant,
• problem,
• cause,
• compound,
• disorder,
• metal,
• instability,