closely knit vs close-knit

closely knit and close-knit both are adjectives.

Word	Noun	Adjective	Verb	Adverb
closely knit	No	Yes	No	No
close-knit	No	Yes	No	No

As adjectives, closely knit and close-knit are synonyms defined as:

closely knit and close-knit: held together as by social or cultural ties

closely knit (adjective)	close-knit (adjective)
held together as by social or cultural ties	held together as by social or cultural ties