Level 6

불완전하다

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Meaning and Usage

The adjective '불완전하다' describes something that is incomplete, imperfect, or lacking in some way. It is often used in formal or academic contexts to critique plans, data, explanations, or systems that are not fully developed or reliable.

Common Collocations

  • 불완전한 자료 (incomplete data): used when data is missing or insufficient.
  • 불완전한 계획 (imperfect plan): refers to plans that have flaws or gaps.
  • 불완전한 설명 (incomplete explanation): when an explanation lacks clarity or detail.

Register and Nuance

This word is formal and typically appears in written or professional speech rather than casual conversation. Using it implies a critical evaluation rather than a neutral description.

Learner Tips

A common mistake is confusing '불완전하다' with '불완전하다' synonyms like '불충분하다' (insufficient). '불완전하다' emphasizes imperfection or incompleteness, not just quantity. Use it when something is fundamentally flawed or unfinished.

Example Sentences

이 보고서는 불완전한 자료를 바탕으로 작성되었다.

I bogoseoneun bulwanjeonhan jaryoreul batang-euro jakseongdoeeotda.

This report was written based on incomplete data.

불완전한 계획 때문에 프로젝트가 지연되었다.

Bulwanjeonhan gyehoeg ttaemune peurojekteuga jiyeondoeeotda.

The project was delayed because of an imperfect plan.

그의 설명은 불완전해서 이해하기 어려웠다.

Geuui seolmyeongeun bulwanjeonhaeseo ihaehagi eoryeowotda.

His explanation was incomplete and hard to understand.