Lowkey means secret or secretly.
The Full Answer
Lowkey is a slang term that means secret or secretly.
It can be written as either lowkey or low key, and is mainly used to inform people about your secretly held thoughts or feelings…
e.g. I lowkey like you…
or lowkey scared…
or lowkey jealous.
Lowkey can also be used to mean keeping things secret…
or low profile.
Where Would You See And Hear Lowkey?
In everyday speech… and texting… and on social media, such as Twitter… and Instagram… and Facebook… and messaging apps, such as Snapchat.
I can’t believe I’m saying this but James Comey is lowkey cute af.
Sometimes I feel like I’m a lowkey freak.
I love that whenever I meet up with you, it’s like a low key therapy session and I always feel great afterwards.
Other Lowkey Meanings
Predominantly dark or muted tones (art and photography).