define lowkey
low-key. adj. 1. Having low intensity; restrained, as in style or quality; subdued. 2.dj. 1. low-key-restrained in style or quality; a little masterpiece of low-keyed eloquence.
Top Definition. low key. 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.rom the age of twelve he began to rap, initially imitating American rappers but soon using his own accent.The first time he went he introduced himself as Lowkey and was told there was already a regular there by that name; the two had a rap battle over the use of the name which Kareem won.