interrupted vs fitful

interrupted and fitful both are adjectives.

Word	Noun	Adjective	Verb	Adverb
interrupted	No	Yes	No	No
fitful	No	Yes	No	No

As adjectives, interrupted and fitful are synonyms defined as:

Other synonyms of interrupted include off-and-on.

interrupted (adjective)	fitful (adjective)
intermittently stopping and starting	intermittently stopping and starting
discontinued temporarily	occurring in spells and often abruptly