1. shady(s = adj.all) fly-by-night - (of businesses and businessmen) unscrupulous; "a shady operation"
Derived form noun shadiness2
2. shady(s = adj.all) louche - of questionable taste or morality; "a louche nightclub"; "a louche painting"
3. shady(s = adj.all) fishy, funny, suspect, suspicious - not as expected; "there was something fishy about the accident"; "up to some funny business"; "some definitely queer goings-on"; "a shady deal"; "her motives were suspect"; "suspicious behavior"
4. shady(s = adj.all) shadowed, shadowy, umbrageous - filled with shade; "the shady side of the street"; "the surface of the pond is dark and shadowed"; "we sat on rocks in a shadowy cove"; "cool umbrageous woodlands"
Derived forms noun shade1, noun shadiness1
1. Abounding in shade or shades; overspread with shade; causing shade. [1913 Webster]
"The shady trees cover him with their shadow." [1913 Webster]
"And Amaryllis fills the shady groves." [1913 Webster]
2. Sheltered from the glare of light or sultry heat. [1913 Webster]
"Cast it also that you may have rooms shady for summer and warm for winter." [1913 Webster]
3. Of or pertaining to shade or darkness; London Sat. Rev.
"Shady characters, disreputable, criminal." [1913 Webster]
shady, adj. (shadier, shadiest)
1 giving shade.
2 situated in shade.
3 (of a person or behaviour) disreputable; of doubtful honesty.
Derivative:
shadily adv. shadiness n.
N darkness, absence of light, blackness, obscurity, gloom, murk, dusk, Cimmerian darkness, Stygian darkness, Egyptian darkness, night, midnight, dead of night, witching hour of night, witching time of night, blind man's holiday, darkness visible, darkness that can be felt, palpable obscure, Erebus, the jaws of darkness, sablevested night, shade, shadow, umbra, penumbra, sciagraphy, obscuration, occultation, adumbration, obumbration, obtenebration, offuscation, caligation, extinction, eclipse, total eclipse, gathering of the clouds, shading, distribution of shade, chiaroscuro, noctivagation, black body, hohlraum, black hole, dark star, dark matter, cold dark matter, dark, darksome, darkling, obscure, tenebrious, sombrous, pitch dark, pitchy, pitch black, caliginous, black, sunless, lightless &c (sun) (light), somber, dusky, unilluminated &c (illuminate), nocturnal, dingy, lurid, gloomy, murky, murksome, shady, umbrageous, overcast, cloudy, darkened, dark as pitch, dark as a pit, dark as Erebus, benighted, noctivagant, noctivagous, in the dark, in the shade, brief as the lightning in the collied night, eldest Night and Chaos, ancestors of Nature, the blackness of the noonday night, the prayer of Ajax was for light.
N shade, awning, parasol, sunshade, umbrella, chick, portiere, screen, curtain, shutter, blind, gauze, veil, chador, mantle, mask, cloud, mist, gathering, of clouds, umbrage, glade, shadow, beach umbrella, folding umbrella, shady, umbrageous, welcome ye shades! ye bowery thickets hail.