ceaseless vs incessant

ceaseless and incessant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ceaseless	No	Yes	No	No
incessant	No	Yes	No	No

As adjectives, ceaseless and incessant are synonyms defined as:

ceaseless and incessant: uninterrupted in time and indefinitely long continuing

Other synonyms of ceaseless include constant, never-ending, perpetual, unceasing, unremitting.

ceaseless (adjective)	incessant (adjective)
uninterrupted in time and indefinitely long continuing	uninterrupted in time and indefinitely long continuing