Modifiers matching ligand:

• uncharged,
• relevant,
• hydrophobic,
• natural,
• extracellular,
• synthetic,
• psychoactive,
• external,
• soft,
• biological,
• exogenous,
• weak,
• psychedelic,
• atomic,
• acidic,
• inorganic,
• charged,
• polar,
• active,
• nonsteroidal,
• hard,
• organic,
• bound,
• metal,
• base,
• complex,
• anionic,
• lipophilic,
• nonmetal,
• small,
• environmental,
• common,
• simple,
• additional,
• physiologic,
• cellular,
• potent,
• ionic,
• hydrophilic,
• ancillary,
• complementary,
• binding,
• neutral,
• functional,
• important,
• strong,
• axial,
• physiological,
• endogenous,
• cationic,

Simple categories matching neutral:

• element,
• solute,
• enzyme,
• lipid,
• location,
• fabric,
• shade,
• particle,
• scent,
• component,
• diaphragm,
• color,
• mutation,
• gas,
• tea,
• sugar,
• language,
• cue,
• compound,
• precursor,
• ingredient,
• filter,
• position,
• adult,
• lepton,
• dish,
• light,
• cleaning,
• ground,
• solvent,
• phospholipid,
• sound,
• substance,
• surface,
• oil,
• constituent,
• stimulus,
• steroid,
• flavor,
• monomer,
• individual,
• organization,
• risk,
• lexis,
• residue,
• thing,
• species,
• agency,
• character,
• structure,
• solution,
• fraction,
• weave,
• hydrocarbon,
• disaccharide,
• monosaccharide,
• party,
• tint,
• expert,
• institution,
• hadron,
• body,
• sterol,
• screen,
• sulfate,
• environment,
• entity,
• creature,
• item,
• thought,
• colouring,
• food,
• space,
• place,
• anaesthetic,
• substrate,
• proteinase,
• area,
• core,
• source,
• organisation,
• agent,
• amide,
• acid,
• atom,
• carbohydrate,
• zone,
• person,
• activity,
• building,
• chloride,
• fat,
• metal,
• object,
• site,
• radiation,
• toy,
• group,
• molecule,
• system,
• atmosphere,
• quality,
• unit,
• cause,
• beam,
• fermion,
• polysaccharide,
• territory,
• beverage,
• polymer,
• saccharide,
• resin,
• grounds,
• issue,
• clothing,
• path,
• term,
• cleaner,
• hexose,
• carrier,
• information,
• fluid,
• material,
• ligand,
• medium,
• drug,
• country,
• liquid,
• complex,
• pharmaceutical,
• topic,
• macromolecule,
• point,
• container,
• drink,
• fragrance,
• odor,
• salt,
• emotion,