neverending

As a noun terms

is .

As an adjective neverending is

having no end or being endless.

As an adverb forever

is (duration) for all time, for all eternity; for an infinite amount of time.

As a noun forever

is an extremely long time.

As an adjective neverending is

having no end or being endless.

As an adjective neverending

is having no end or being endless.

As a noun infinity is

endlessness, unlimitedness, absence of end or limit.

As adjectives the difference between permanent and neverending

is that permanent is without end, eternal while neverending is having no end or being endless.

As a noun permanent

is a chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm.

As a verb permanent

is (dated) to perm (the hair).

As adjectives the difference between ongoing and neverending

is that ongoing is continuing, permanent while neverending is having no end or being endless.

As a noun ongoing

is something that is going on; a happening.

As adjectives the difference between neverending and boundless

is that neverending is having no end or being endless while boundless is without bounds, unbounded.

As an adverb timelessly

is in a timeless manner.

As an adjective neverending is

having no end or being endless.

As adjectives the difference between neverending and enduring

is that neverending is having no end or being endless while enduring is long-lasting.

As a verb enduring is

.

As a noun enduring is

endurance.

Perennial is a related term of neverending.

As adjectives the difference between perennial and neverending

is that perennial is lasting or remaining active throughout the year, or all the time while neverending is having no end or being endless.

As a noun perennial

is a perennial plant; a plant that is active throughout the year or survives for more than two growing seasons compare (annual), (biennial).

As adjectives the difference between neverending and neverending

is that neverending is having no end or being endless while neverending is having no end or being endless.