Modifiers matching narcotic:

• organic,
• illegal,
• hardcore,
• powerful,
• medical,
• illicit,
• iv,
• oral,
• conventional,
• prescribed,
• strong,
• natural,
• hard,
• addictive,
• ordinary,
• synthetic,
• ii,
• lipophilic,
• epidural,
• modern,
• common,
• dangerous,
• manufactured,
• toxic,
• destructive,
• hydrophilic,
• pure,
• controlled,
• deadly,
• potent,
• legal,
• important,
• mild,
• disposable,
• harder,
• damaging,
• expensive,
• heavy,
• traditional,
• serious,

Simple categories matching harder:

• material,
• agent,
• sediment,
• stone,
• layer,
• resin,
• aggregate,
• mineral,
• genre,
• metal,
• thing,
• drug,
• boot,
• polymer,
• surface,
• structure,
• rock,
• work,
• filler,
• fabric,
• object,
• particle,
• tissue,
• abrasive,
• stuff,
• cheese,
• ingredient,
• substance,
• stimulant,
• formation,
• currency,
• part,
• crystal,
• powder,
• glass,
• narcotic,
• sport,
• music,
• food,
• gemstone,
• medium,
• assets,
• feldspar,
• pin,
• ground,
• alloy,
• substrate,
• wood,
• deposit,