shady vs shadowy

shady and shadowy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
shady	No	Yes	No	No
shadowy	No	Yes	No	No

As adjectives, shady and shadowy are synonyms defined as:

Other synonyms of shady include shadowed, umbrageous.

shady (adjective)	shadowy (adjective)
quiet, dark, or concealed	lacking clarity or distinctness
of questionable honesty or legality	lacking in substance
not as expected	filled with shade
filled with shade