1. (superl.) Abounding in shade or shades; overspread with shade; causing shade.

2. (superl.) Sheltered from the glare of light or sultry heat.

3. (superl.) of or pertaining to shade or darkness; hence, unfit to be seen or known; equivocal; dubious or corrupt.

amoral bent blue bosky broad clouded conscienceless corrupt corrupted criminal crooked curtained dark darkling derogatory devious discreditable disgraceful dishonest dishonorable disreputable doubtful dubious dusky equivocal evasive felonious fishy fraudulent ignoble ignominious ill-got ill-gotten immoral indecisive indefinite indirect indistinct infamous inglorious insidious not kosher notorious obumbrate obumbrated off-color overshaded overshadowed penumbral purple questionable racy rotten salty screened seamy shabby shaded shadow shadowy shameful shameless sheltered shifty shoddy sinister slippery sordid spicy suggestive suspect suspicious tricky umbral uncertain unconscienced unconscientious unconscionable undecided underhand underhanded unethical unpraiseworthy unprincipled unreliable unrespectable unsavory unscrupulous unstraightforward veiled wicked without remorse without shame