Category Nuances for thinner:

• combustible,
• liquid,
• volatile,
• popular,
• inflammable,
• flammable,
• harsh,
• hazardous,
• strong,
• dangerous,
• organic,
• illegal,
• aggressive,
• intoxicating,

Simple Categories for thinner:

• drug,
• fuel,
• agent,
• substance,
• nature,
• matter,