1. Slippery.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• slappy,
• simpy,
• slipp,
• sllepy,
• clipp,
• slopply,
• slepp,
• smilpy,
• slipon,
• slipery,
• siply,
• slicy,
• slppy,
• sleppy,
• sliper,
• slopy,
• sleapy,
• slippry,
• slepy,
• slippin

• sloppy,
• slope,
• sleep,
• sleepy,
• Slape,
• slap,
• slop,
• slip by,
• slipway,
• slip,
• sloop.

The adjective form of "slippy" is "slippery".

The plural form of "slippy" is "slippies".

The singular form of the word "slippy" is "slippery"