-로 인해
Due to, Because of
-로 인해 attaches to a noun and means 'due to' or 'because of'. It's mainly used in formal writing or official announcements to state the cause of a result, which is often negative.
How It Works
-로 인해 is a formal expression used to indicate the cause or reason for a particular situation. It is formed by combining the particle -(으)로 (by means of, with) and the verb 인하다 (to be due to, to result from).
Usage Rules:
It attaches directly to nouns. The form changes based on whether the noun ends in a vowel or a consonant:
- Nouns ending in a vowel or the consonant ㄹ: -로 인해
- 예: 실수 (mistake) → 실수로 인해
- 예: 폭설 (heavy snow) → 폭설로 인해 - Nouns ending in a consonant (except ㄹ): -으로 인해
- 예: 지진 (earthquake) → 지진으로 인해
- 예: 태풍 (typhoon) → 태풍으로 인해
Nuances and Comparisons:
While it translates to 'because of', it's not interchangeable with more common expressions like -기 때문에 or -아/어서.
- Formality: -로 인해 is very formal. It's rarely used in casual conversation. You'll see it in news articles, official documents, and public announcements.
- Connotation: It is most often used when the result is negative or problematic (e.g., accidents, cancellations, damage). While it can be used neutrally, it's less common for clearly positive outcomes. For positive reasons, '덕분에' (thanks to) is preferred.
- Comparison with -ㄴ/는 탓에: Both are used for negative reasons. However, -탓에 implies blame or fault, whereas -로 인해 is more objective and factual, simply stating the cause without assigning blame.
Examples (4)
- 폭설로 인해 항공편이 모두 취소되었습니다.
Due to the heavy snow, all flights have been canceled.
Word by Word: By heavy snow, flights all were canceled.
This is a typical example you would hear in a news report or airport announcement. '폭설' (heavy snow) is the direct cause of the flight cancellations.
- 컴퓨터 바이러스로 인해 중요한 파일들이 삭제되었다.
Important files were deleted due to a computer virus.
Word by Word: By computer virus, important files were deleted.
The noun '바이러스' ends in a vowel, so -로 인해 is used. This sentence formally states the cause of the problem.
- 갑작스러운 사고로 인해 도로가 심하게 막혔습니다.
Due to a sudden accident, the road was severely congested.
Word by Word: By sudden accident, the road severely was blocked.
'사고' (accident) is the reason for the traffic jam. This phrasing is common in traffic reports.
- 환경오염으로 인해 생태계가 파괴되고 있습니다.
Due to environmental pollution, the ecosystem is being destroyed.
Word by Word: By environmental pollution, the ecosystem is being destroyed.
This example shows -로 인해 used with an abstract noun ('환경오염') to explain a serious, large-scale problem, suitable for a documentary or academic paper.
Common Mistakes
Using -로 인해 in casual, everyday conversation.
Different Meaning나 어제 감기로 인해 학교에 못 갔어.Better나 어제 감기 때문에 학교에 못 갔어.-로 인해 is too formal and stiff for talking with friends. In casual speech, '-때문에' is the natural choice for giving a reason.
Using -로 인해 for a positive outcome where '덕분에' (thanks to) would be more appropriate.
Different Meaning선생님의 도움으로 인해 시험에 합격했어요.Better선생님 덕분에 시험에 합격했어요.While -로 인해 can be neutral, it carries a strong negative connotation. For a positive result that you are thankful for, '덕분에' is the correct and natural expression.
Learn This First
To express causation 'due to/because of', you need the basic particle 로 and causation patterns.
Related Patterns
- -기 때문에Because
Both mean 'because'. -기 때문에 is a general-purpose reason marker that attaches to verb/adjective stems and can be used in both formal and informal contexts. -로 인해 is more formal, attaches only to nouns, and is typically used for negative or neutral reasons.
- -아/어서Because of, Therefore
-아/어서 is a very common way to show a cause-and-effect relationship, especially in conversation. It's less formal than -로 인해 and has grammatical limitations (e.g., it cannot be used with imperative or propositive sentences).
- -ㄴ/는/ㄹ 탓에Because of, Due to
Both are used for negative reasons. -ㄴ/는 탓에 implies blame or fault for the negative outcome. -로 인해 is more objective and factual, simply stating the cause without the nuance of blame. Think of it as 'due to' (objective) vs. 'on account of / it's all because of' (blame).
- -는 바람에Because of, Due to
Both indicate a cause for a negative result. -는 바람에 is used specifically when an unexpected or sudden action causes a negative consequence. -로 인해 is broader and can be used for any cause, whether it was sudden or a long-standing issue.
- -에 의해By, Through, According to
Both are formal and common in written Korean. -에 의해 primarily means 'by' and indicates the agent of a passive action (e.g., 'The building was designed by him'). -로 인해 indicates the 'reason' or 'cause' of an event. They are not interchangeable.