(ちめいてき)

ちめいてき
adjective-na
fatal; critical; devastating
1. fatal; critical; devastating
Causing death or irreparable harm. Used both literally (a fatal wound) and figuratively (a critical flaw, a devastating mistake).
致命的(ちめいてき)なミスを(おか)した。
I made a fatal mistake.
この欠陥(けっかん)製品(せいひん)にとって致命的(ちめいてき)だ。
This defect is critical for the product.
データの流出(りゅうしゅつ)企業(きぎょう)信頼(しんらい)致命的(ちめいてき)打撃(だげき)(あた)えた。
The data leak dealt a devastating blow to the company's credibility.

致命的(ちめいてき) is a na-adjective formed from 致命(ちめい) (causing death) + (てき) (adjectival suffix). While it can describe literally fatal situations, the figurative usage (critical flaw, devastating problem) is more common in everyday speech.

COMMON COLLOCATIONS:

  • 致命的(ちめいてき)なミス (a fatal mistake)
  • 致命的(ちめいてき)欠陥(けっかん) (a critical defect)
  • 致命的(ちめいてき)打撃(だげき) (a devastating blow)
  • 致命的(ちめいてき)弱点(じゃくてん) (a fatal weakness)
  • 致命的(ちめいてき)(きず) (a fatal wound)

USAGE NOTES:
In computing and technology, 致命的(ちめいてき)なエラー is the standard translation for "fatal error." The word is very common in business and news contexts to describe problems that could cause irreversible damage.