wacky vs goofy

wacky and goofy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
wacky	No	Yes	No	No
goofy	No	Yes	No	No

As adjectives, wacky and goofy are synonyms defined as:

Other synonyms of wacky include silly, whacky, zany.

wacky (adjective)	goofy (adjective)
ludicrous, foolish	ludicrous, foolish
informal or slang terms for mentally irregular