Modifiers matching stimulus:

• external,
• organizational,
• damaging,
• natural,
• stressful,
• electrical,
• rewarding,
• real,
• psychic,
• stimulating,
• subjective,
• internal,
• intense,
• sensory,
• noxious,
• distinct,
• complex,
• distressing,
• physiologic,
• adverse,
• harmful,
• old,
• instructional,
• negative,
• physical,
• multiple,
• mechanical,
• social,
• strong,
• visual,
• abnormal,
• cellular,
• extracellular,
• physiological,
• noninfectious,
• individual,
• innocuous,
• rhythmic,
• emotional,
• chemical,
• subtle,
• maternal,
• pathologic,
• extraneous,
• major,
• outside,
• light,
• detrimental,
• environmental,
• diverse,
• pictorial,
• peripheral,
• nonspecific,
• ambient,
• temporal,
• artificial,
• local,
• exogenous,
• supplemental,
• positive,
• constant,
• prolonged,
• simple,
• monotonous,
• unpleasant,
• transient,
• standard,
• auditory,
• biological,
• identifiable,
• special,
• familiar,
• neutral,
• aversive,
• cytotoxic,
• inflammatory,
• pathological,
• chronic,
• mental,
• painful,

Simple categories matching stressful:

• condition,
• event,
• process,
• time,
• task,
• state,
• intervention,
• posture,
• emotion,
• occasion,
• situation,
• exertion,
• work,
• setting,
• motion,
• activity,
• circumstances,
• symptom,
• manipulation,
• behavior,
• stimulus,
• procedure,
• experience,
• episode,
• incident,
• profession,
• period,
• therapy,
• habitat,
• agent,
• treatment,
• job,
• times,
• sport,
• change,
• difficulty,
• occurrence,
• consequence,
• conflict,
• circumstance,
• appointment,