fussy vs busy

fussy and busy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fussy	No	Yes	No	No
busy	No	Yes	Yes	No

As adjectives, fussy and busy are synonyms defined as:

fussy (adjective)	busy (adjective)
overcrowded or cluttered with detail	actively or fully engaged or occupied
annoyed and irritable	overcrowded or cluttered with detail
exacting especially about details	intrusive in a meddling or offensive manner
	(of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line)
	crowded with or characterized by much activity

fussy (verb)	busy (verb)
	keep busy with