Modifiers matching acid:

• fatty,
• available,
• liquid,
• organic,
• hydrophobic,
• natural,
• industrial,
• oxidizable,
• useful,
• agricultural,
• aggressive,
• free,
• inorganic,
• weak,
• cyclic,
• hard,
• base,
• corrosive,
• nonvolatile,
• common,
• polyunsaturated,
• volatile,
• acid,
• edible,
• carboxylic,
• aqueous,
• unusual,
• heterocyclic,
• lipophilic,
• wholesome,
• monounsaturated,
• ordinary,
• strong,
• endogenous,
• poisonous,
• hydrophilic,
• dissolved,
• safe,
• amino,
• aromatic,
• wet,
• solid,
• little,
• soft,
• heterogeneous,
• cellular,
• unwanted,
• acidic,
• basic,
• conventional,
• extra,
• unsaturated,
• possible,
• gaseous,
• simple,
• accessible,
• aliphatic,
• heavy,
• additional,
• metabolic,
• polymeric,
• acetic,
• active,
• small,
• nitrogenous,
• hydroxy,
• essential,
• monovalent,
• phosphorous,
• nontoxic,
• dangerous,
• relevant,
• chemical,
• saturated,
• monocarboxylic,
• neutral,
• popular,
• digestive,
• dietary,
• mild,
• exogenous,
• preservative,

Simple categories matching useful:

• item,
• object,
• group,
• credential,
• metal,
• category,
• information,
• movement,
• machinery,
• theory,
• garment,
• plant,
• publication,
• implement,
• thing,
• craft,
• prefab,
• article,
• message,
• acid,
• facility,
• microorganism,
• weapon,
• intermediate,
• anticonvulsant,
• topic,
• material,
• event,
• instruction,
• remedy,
• organism,
• gear,
• reminder,
• graph,
• animal,
• derivative,
• location,
• salt,
• tip,
• result,
• operations,
• occupation,
• appliance,
• constituent,
• structure,
• character,
• ornament,
• activity,
• project,
• arrangement,
• measure,
• vocabulary,
• container,
• entity,
• page,
• protein,
• example,
• software,
• trait,
• prize,
• species,
• deposit,
• ability,
• sound,
• palm,
• variation,
• function,
• emotion,
• content,
• signal,
• residue,
• furniture,
• compound,
• phenomenon,
• solid,
• necessity,
• accessory,
• info,
• report,
• protocol,
• control,
• toiletry,
• treatment,
• catalyst,
• view,
• device,
• phytochemical,
• task,
• organisation,
• invention,
• life,
• perennial,
• nutrient,
• table,
• assets,
• database,
• tree,
• component,
• instrument,
• ware,
• indicator,
• drug,
• outbuilding,
• button,
• relic,
• deliverable,
• legume,
• subject,
• insect,
• chemical,
• antidepressant,
• gadget,
• labor,
• details,
• transformation,
• routine,
• arts,
• course,
• product,
• lexis,
• format,
• action,
• class,
• index,
• point,
• business,
• situation,
• surface,
• work,
• trade,
• sensor,
• record,
• provisions,
• equipment,
• commodity,
• machine,
• supply,
• value,
• metabolite,
• building,
• fixture,
• data,
• widget,
• food,
• artefact,
• tool,
• science,
• shape,
• theme,
• improvement,
• layer,
• attribute,
• match,
• touch,
• skill,
• trifle,
• polyhedron,
• support,
• card,
• plane,
• option,
• vehicle,
• pharmaceutical,
• document,
• property,
• lipid,
• characteristic,
• substance,
• vocation,
• mechanism,
• help,
• piece,
• tube,
• steroid,
• form,
• antibiotic,
• model,
• substrate,
• framework,
• symbol,
• bacteria,
• artifact,
• fraction,
• antioxidant,
• rock,
• utensil,
• macromolecule,
• particle,
• quantity,
• count,
• organ,
• behaviour,
• room,
• polymer,
• fibre,
• book,
• service,
• profession,
• system,
• gas,
• energy,
• mineral,
• position,
• section,
• amount,
• quality,
• evidence,
• utility,
• links,
• fluid,
• passion,
• knowledge,
• molecule,
• stuff,
• address,
• part,
• peripheral,
• dog,
• process,
• language,
• grass,
• needle,
• venture,
• concept,
• resource,
• hydrocarbon,
• tissue,
• construction,
• agreement,
• calculation,
• elements,
• bird,
• alloy,
• application,
• practice,
• job,
• predator,
• unit,
• byproduct,
• enterprise,
• solute,
• herb,
• larva,
• creature,
• institution,
• place,
• extra,
• clothes,
• fuel,
• end,
• microbe,
• identifier,
• purpose,
• illustration,
• composition,
• feature,
• library,
• amenities,
• plastic,
• behavior,
• text,
• abstraction,
• notion,
• technique,
• agent,
• output,
• semiconductor,
• mode,
• program,
• regulation,
• handicraft,
• area,
• shop,
• protection,
• pot,
• guidance,