Declan

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The Korean word

부족하다

means
to be lacking
Examples:
연출은 열정이 부족했다.
The performance was lacking in soul.
그녀는 상식이 부족하다.
She is lacking in common sense.
여행 갈 돈이 부족하다.
Money is lacking for the trip.
그녀는 용기가 부족합니까?
Is she lacking in courage?
Examples sourced from tatoeba.org