This is the 1166th most frequent Korean word.
성격이
"성격이" means "personality is."
Here, '성격이' refers to the inherent traits or disposition of the person, drawing attention to a specific characteristic: 'bright'.
그는 성격이 밝아서 많은 친구가 있다.
He has a bright personality, so he has many friends.
In this sentence, '성격이' emphasizes the strength or intensity of the personality, tied to interpersonal dynamics.
성격이 강하면 때로는 다른 사람과 충돌할 수도 있다.
Having a strong personality can sometimes lead to conflicts with others.
Here, '성격이' is used to detail the calm and soothing nature of the friend's personality in social interactions.