Top definition
1. quiet, modest, not very assertive

2. to treat with little emphasis
They rented a low-key dorm for their meetings.
by The Return of Light Joker December 17, 2009
2
To be secretive about something Such as crushes,events,Etc.
Person-I low key have a crush on (so and so)
by Media buzz April 17, 2016
3
The dictionary recognized word “low-key” is an adjective that means, according to Merriam Webster:

1: quiet and relaxed: not very forceful, emotional or noticeable

2: of low intensity: restrained

The slang variant of low-key (often written without the hyphen as lowkey) functions as an adverb. Lowkey is typically used to describe a speaker's desires or emotions. Lowkey retains the dictionary definition’s meaning of “of low intensity” and “not very emotional.” However, additionally, it can also indicate something that is secretly (perhaps somewhat shamefully) wanted or felt by the speaker.

In short, lowkey is used to describe a speaker's thoughts, feelings, and desires, and it means:

1: moderately: of low emotional intensity
2: secretly

The opposite of lowkey is highkey.
“I lowkey wanna eat an entire cake.”

“I highkey wanna eat healthy, but lowkey wanna to eat an entire cake.”

“I am lowkey in love with Kevin Spacey.”
by tinkertayler June 05, 2016
4
to keep something low key: to not announce it; to have a quiet gathering; opposite of a large party or big group of people; not much emphasis, closely aligned with a normal night out doing the usual stuff.
im going out tonight but it's pretty low key; i've gotta work tomorrow so tonight's going to be a low key event.
by donjamin June 10, 2005
5
1) Secretly or discretely

2) Slightly or kinda
"He's moving to Chicago in three weeks but the semester isn't over for another seven weeks. He's lowkey dropping out."

"I didn't think I would be but I'm lowkey sad that my roommate is moving out."
by soflyme1 February 26, 2010
6
Not wanting people to know who you are, keeping a low profile.
Guy 1 - Hey what up mayne, what you tryna do.
Guy 2 - How you get my screen name son, I just be tryna be low key.
by JSun March 31, 2008
7
A word to describe a state of keeping on the low and not to have your name in everyones mouth. Low key is also a state of which someone does not want to be talked about or be heaty.

for example if someone is too heaty or has too much beef and is too "known" they might get advice to keep low key for a while
wow elaine your so low key ! how do you do it?

or

damn elaine your so heatscore you gotta keep on the down low, you know what i mean? like LOW KEY !
by mom_646464 February 04, 2007