slippy

As adjectives the difference between slippy and undefined

is that slippy is slippery while undefined is lacking a definition or value.

As adjectives the difference between slippy and smooth

is that slippy is slippery while smooth is having a texture that lacks friction. Not rough.

As an adverb smooth is

smoothly.

As a noun smooth is

something that is smooth, or that goes smoothly and easily.

As a verb smooth is

to make smooth or even.

As adjectives the difference between slippy and null

is that slippy is slippery while null is having no validity, "null and void.

As a noun null is

a non-existent or empty value or set of values.

As a verb null is

to nullify; to annul.

As adjectives the difference between muddy and slippy

is that muddy is covered with or full of mud or wet soil while slippy is slippery.

As a verb muddy

is to get mud on (something).

As a verb honk

is to use a car horn.

As a noun honk

is the sound produced by a typical car horn.

As an interjection honk

is Imitation of car horn, used, for example, to clear a path for oneself.

As an adjective slippy is

slippery.