There is a Japanese phrase "Kuuki yomenai", which literally translates to "Can't read the air", and can be used to describe someone who doesn't get social cues or is unaware of other people's moods & intentions.
(There is an equivalent in Korean as well: "Noon-chi up-da")
It's like a combination of oblivious, awkward, and self-centered. I want to use it to describe someone who would keep talking about themselves, dominate a group conversation, and not realise that the others are tired of it.
Would you describe them as "socially inept"? Or does that come with too many mental-illness connotations?
Thanks.
EDIT:
I FOUND IT!
(Socially) Tone deaf!
And thanks to everyone who contributed 🙂
Best Answer
I would use not tactful for such a person as tactful means:
"(S)he behaves tactlessly." could also work. Tactless is usually used attributively modifying a noun:
[Merriam-Webster]