Modifiers matching neurotransmitter:

• endogenous,
• small,
• proinflammatory,
• hydrophilic,
• abstract,
• inhibitory,
• secondary,
• happy,
• chemical,
• common,
• key,
• excitatory,
• stimulating,
• biogenic,
• important,

Simple categories matching abstract:

• agency,
• property,
• entity,
• actuator,
• concept,
• literature,
• goal,
• thing,
• idea,
• discipline,
• sound,
• fluid,
• machine,
• quality,
• hardware,
• quantity,
• diagram,
• object,
• procedure,
• organization,
• symbol,
• phenomenon,
• virtue,
• information,
• mood,
• computation,
• game,
• transformation,
• study,
• notion,
• attribute,
• organisation,
• project,
• essence,
• science,
• structure,
• interaction,
• experience,
• act,
• statement,
• way,
• building,
• clause,
• content,
• formula,
• being,
• authority,
• circle,
• sentiment,
• variable,
• issue,
• medium,
• artifact,
• creation,
• body,
• system,
• hormone,
• arts,
• document,
• mascot,
• sand,
• signal,
• ideology,
• measure,
• connection,
• surface,
• thought,
• data,
• motivation,
• practice,
• skill,
• place,
• form,
• garment,
• words,
• consideration,
• set,
• mathematics,
• culture,
• aspect,
• polymer,
• activity,
• view,
• terms,
• individual,
• theory,
• philosophy,
• representation,
• means,
• design,
• relation,
• product,
• tendency,
• math,
• ism,
• work,
• map,
• location,
• ectoparasite,
• theme,
• group,
• shape,
• alarm,
• plurality,
• antipsychotic,
• dimension,
• substitution,
• knowledge,
• difference,
• truth,
• result,
• nature,
• idealization,
• pattern,
• emotion,
• domain,
• reference,
• devices,
• value,
• authorities,
• ability,
• polysaccharide,
• operations,
• genre,
• territory,
• conceptualisation,
• sign,
• input,
• change,
• characteristic,
• standard,
• solid,
• constraint,
• principle,
• error,
• prediction,
• personification,
• rule,
• language,
• class,
• type,
• drug,
• function,
• figure,
• condition,
• component,
• algorithm,
• imperfection,
• disorder,
• receptor,
• music,
• disturbance,
• task,
• process,
• world,
• term,
• predisposition,
• elements,
• cause,
• topic,
• behavior,
• defect,
• works,
• service,
• relationship,
• substance,
• influence,
• institution,
• collective,
• mixture,
• values,
• force,
• event,
• agent,
• ideal,
• matter,
• operation,
• article,
• painting,
• image,
• subject,
• level,
• totality,
• neurotransmitter,
• state,
• character,
• unit,
• capability,
• particle,
• model,
• space,
• desire,
• trait,
• item,
• belief,
• ways,
• category,
• material,
• fiber,
• ornamentation,
• interest,
• algebra,
• equipment,
• energy,
• society,
• conception,
• humor,
• constituent,
• feature,
• action,
• right,
• indication,
• grouping,
• scheme,
• format,
• guideline,