아이다

is not, am not, are not

a̠ i d a̠
아이 is not, am not, are not + 다 Plain declarative ending
adjective Rare #21,474
is not, am not, are not Regional dialect form of 아니다, especially in southeastern Korea.
KO: 그건 내 가방이 아이다.
EN: That isn't my bag.

아이다, 됐다, 가라 해라

No, forget it. Just go.

— Love Untangled (2025)

진짜 아이다, 아이다!

No, it’s not! It’s not!

— Love Untangled (2025)

아이, 윤석이 햄 우산에, 가방에, 목발에 난리도 아이다

Oh, Yoon-seok’s got an umbrella, a bag, crutches—the whole works. What a sight.

— Love Untangled (2025)

Sounds similar to