Generally meaning someone who is mysterious or difficult to understand; someone who tends to stay in the background.

Can also be used more offensively to describe someone who is or seems to be untrustworthy, sneaky and unrespectable.
I want to get to know him, but he's so shady, it will take some time.

I don't trust her, she seems really shady.

by Kurtney October 19, 2007

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Something that is suspicious, questionable, unsafe, low quality;In regards to people its someone who doesnt keep it real, or acts mysteriously.
J-Red: Everything in the Quad City Mallards ice arena is shady.
Alex: I completely agree with you 100%!!!
by qwerty77 March 28, 2007

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A name of a person who is trustworthy and will do anything for the one he love the most no matter the distance between them . He is also little bit dramatic but that doesn't keep him from being the best friend you will ever had.
Person 1: who that cool guy over there

person 2 : He is shady who is loved by everyone .
by Zahacker January 24, 2016

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N. Wales, archaic but still in current use
1. suspicious 2. cruel 3. a bad situation out of your control 4. (jocular) a bad or unwanted set of circumstances
"They wouldn't let me into the club last night cause they said my Ben Sherman shirt was too scruffy, it was hell of a shady"; "I dropped my kebab on the way home, it was dead shady"
by Joe Shoo January 08, 2005

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1. Suspicious looking
2. Short for Slim Shady aka Eminem
3. Clothing line founded by Eminem
1. That musta looked mad shady when I walked up to Chris at work, handed him $20, then left.
2. Slim Shady is the only respectable white rapper.
3. That Shady hoodie was $80.
by deeee May 19, 2004

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A place you don't want to be. This place may exhibit any combination of the following characteristics:

1. a high crime rate
2. a plethora of sketchy characters (aka thugs)
3. dark alleys or blind corners
4. the presence of metal detectors or rent-a-cops
5. instills a fear of you gettin' jacked

Ladies, if you have to ask a guy to walk you to your car for safety reasons (and not because you want to make out with him) ... the place is definitely shady.
I don't care that parking garage has decent lighting, it is shady from midnight to 6 am. Why else would they need a rent-a-cop?

The G-bar over in downtown is shady. Even my buddy Ian, who's pretty much a thug, got jacked there.

Ken went to a shady high school.
Really, how shady?
So shady they put metal detectors at the doors his freshmen year.
by PtotheJ January 01, 2008

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to be very sneaky, suspect, or to have an all around backstabbing personality
Jocelyn or DJ is one shady individual, which is why she is called Shady C.
by ak3aeafdf May 30, 2014

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