shady

Abounding in shades.

Causing shade.

The shady trees cover him with their shadow.

Overspread with shade; sheltered from the glare of light or sultry heat.

you may have rooms both for summer and winter; shady for summer, and warm for winter

I know the shadiest breeziest spots, hidden tables surrounded by trees that have lived longer than the neighborhoods around them.

Not trustworthy; disreputable.

He is a shady character.

No sunshine in my life, the way I deal is shady

Mean, cruel.

They were being proper shady to him. Even if you don't like someone, locking them out, stealing their clothes and ganging up on them to take the piss is just childish.

I didn't even ask her to be in the 'Increase the Peace' campaign, which was well shady, 'cos if anyone knows anything about rudes and violence and getting dragged into stuff it's Uma.

A surname.