Modifiers matching insulator:

• convenient,
• slippery,
• thermal,
• amorphous,
• electrical,
• transparent,
• simple,
• hydrophilic,
• solid,
• fluid,
• periodic,
• polar,
• inorganic,
• exotic,
• conductive,
• available,
• ionic,
• durable,
• polymeric,
• traditional,
• protective,
• biological,
• familiar,
• suitable,
• white,
• hard,
• domestic,
• clear,
• elastic,
• important,
• electric,
• good,
• natural,
• conventional,
• elongated,
• ceramic,
• liquid,
• common,
• stable,
• crystalline,
• nonconductive,
• synthetic,
• organic,
• external,
• supporting,

Simple categories matching slippery:

• contaminant,
• lubricant,
• surface,
• coin,
• fabric,
• layer,
• coating,
• floor,
• area,
• material,
• substance,
• ground,
• flooring,
• item,
• stuff,
• insulator,
• cloth,
• prey,
• fiber,
• fish,
• solid,
• substrate,
• food,
• course,
• plastic,
• sediment,
• reptile,
• condition,