ceaseless

Immortal is a synonym of ceaseless.

As adjectives the difference between immortal and ceaseless

is that immortal is not susceptible to death; living forever; never dying while ceaseless is without an end.

As a noun immortal

is one who is not susceptible to death.

As adjectives the difference between seamless and ceaseless

is that seamless is having no seams while ceaseless is without an end.

As an adverb constantly

is (archaic) with steadfastness; with resolve; in loyalty, faithfully.

As an adjective ceaseless is

without an end.

As a verb perpetuate

is to make perpetual; to preserve from extinction or oblivion.

As an adjective ceaseless is

without an end.

Infinite is a related term of ceaseless.

As a noun infinite

is infinity, endlessness.

As an adjective ceaseless is

without an end.

Ceaseless is a related term of wearisome.

As adjectives the difference between ceaseless and wearisome

is that ceaseless is without an end while wearisome is tiresome, tedious or causing fatigue.

As adjectives the difference between ceaseless and unstoppable

is that ceaseless is without an end while unstoppable is unable to be stopped.

Ceaseless is a related term of persevering.

As adjectives the difference between ceaseless and persevering

is that ceaseless is without an end while persevering is tending to persevere.

As a noun persevering is

perseverance.

As a verb persevering is

.

As adjectives the difference between ceaseless and continued

is that ceaseless is without an end while continued is (dated) prolonged; unstopped.

As a verb continued is

(continue).

Ceaseless is a related term of steady.

As adjectives the difference between ceaseless and steady

is that ceaseless is without an end while steady is firm in standing or position; not tottering or shaking; fixed; firm.

As a verb steady is

to stabilize something; to prevent from shaking.

As a noun steady is

(informal) a regular customer.