確実

「確」(かく)は「確か」の意であり、「実」(じつ)は「実際」の意を持つ。これらが合わさって「確実」という意味になる。

ADJ (1)
[/kakudʑitsɨ/ja-JP]
certain literal / reliable formal / sure colloquial / untranslatable concept untranslatable (The nuance of '確実' embodies a level of assurance and certainty that may not be fully captured by a single English word.)
Synonyms 確か formal , 確実無比 literary
Antonyms 不確か

Describes something that is certain, sure, or reliable; possessing a high degree of assurance, dependability, or infallibility. It conveys a strong sense of inevitability, trustworthiness, or freedom from doubt, often implying that a particular outcome or quality is guaranteed and can be relied upon without question. While English offers words like 'certain' or 'reliable,' '確実' often encapsulates a slightly stronger or more absolute sense of guaranteed truth or outcome.

特に変化なし
plural
...
  • 彼の計画成功確実だ。 — His plan is certain to succeed.
  • 確実方法で、その問題解決しなければならない。 — We must solve that problem using a reliable method.
  • この投資確実利益をもたらすだろう。 — This investment will surely bring profit.
register: standard