Modifiers matching fire:

• small,
• fast,
• recreational,
• industrial,
• infrequent,
• surrounding,
• big,
• major,
• out,
• minor,
• large,
• special,
• intense,
• liquid,
• open,
• primary,
• difficult,
• side,
• flammable,
• hot,
• smouldering,
• flaming,
• secondary,
• real,
• smaller,
• supernatural,
• cool,
• outdoor,
• domestic,
• controlled,
• accidental,
• physical,
• severe,
• uncontrolled,

Simple categories matching intense:

• emotion,
• sensation,
• activity,
• pain,
• use,
• sector,
• storm,
• work,
• conflict,
• sport,
• change,
• distress,
• fear,
• exercise,
• weather,
• stimulus,
• situation,
• rainstorm,
• hazard,
• passion,
• symptom,
• light,
• form,
• game,
• focus,
• stimulation,
• program,
• experience,
• concept,
• process,
• sweetener,
• beam,
• season,
• radiation,
• event,
• energy,
• effort,
• love,
• excitement,
• flash,
• appliance,
• heat,
• training,
• burst,
• windstorm,
• recreation,
• relationship,
• movement,
• headache,
• discomfort,
• fire,
• phenomenon,
• destabilization,
• exercising,
• dancing,
• facility,
• condition,
• occupation,
• behavior,
• aroma,
• cyclone,
• period,
• disturbance,
• disposition,
• feeling,
• state,
• reaction,