Modifiers matching stimulation:

• physical,
• mechanical,
• sexual,
• sensory,
• external,
• chronic,
• intellectual,
• aversive,
• mental,
• regular,
• emotional,
• environmental,
• noxious,
• antigenic,
• intense,
• outside,
• electrical,
• light,
• internal,
• sympathetic,
• active,
• auditory,

Simple categories matching intellectual:

• person,
• assistance,
• interest,
• philosopher,
• effort,
• change,
• entity,
• vocation,
• orator,
• ability,
• scientist,
• music,
• intellectual,
• function,
• processing,
• hero,
• attitude,
• politician,
• lawyer,
• discipline,
• aristocrat,
• achievement,
• campaigner,
• robot,
• capability,
• state,
• novelist,
• profession,
• affection,
• facility,
• service,
• feminist,
• quality,
• production,
• writer,
• debate,
• nihilism,
• technique,
• crime,
• integrity,
• material,
• operation,
• process,
• philosophy,
• virtue,
• output,
• assets,
• language,
• historian,
• institution,
• adventurer,
• religion,
• preacher,
• capital,
• stimulation,
• event,
• thought,
• journal,
• nature,
• faculty,
• structure,
• control,
• performance,
• woman,
• forum,
• information,
• brain,
• possession,
• measure,
• president,
• characteristic,
• group,
• task,
• knowledge,
• culture,
• work,
• guru,
• product,
• project,
• values,
• issue,
• growth,
• right,
• attribute,
• content,
• organization,
• heritage,
• behavior,
• artist,
• android,
• astronaut,
• mechanism,
• history,
• activity,
• document,
• works,
• competition,
• thing,
• subject,
• force,
• scholar,
• arts,
• activist,
• trait,
• exchange,
• communist,
• movement,
• practice,
• endeavor,
• endeavour,
• power,
• field,
• study,
• gathering,
• composer,
• skill,
• involvement,
• science,
• area,
• disability,
• captain,
• poet,
• inquiry,
• unit,
• tradition,
• game,
• system,
• topic,
• notion,
• creation,
• capacity,
• domain,
• life,
• attainment,
• property,
• form,
• program,