Japanese

Adjectival noun

確実 ‎(-na inflection, hiragana かくじつ, romaji kakujitsu)

1. certain, reliable

   この人に順えば確実だ。

   kono hito ni shitagaeba kakujitsu da.

   He is a reliable fellow.

2. certain, inevitable, necessary

   外務大臣の辞任は確実だ。

   gaimu daijin no jinin wa kakujitsu da.

   The resignation of the foreign minister is inevitable.

Usage notes

Used particularly of sources of information (“trustworthiness”), rather than for physical activities, such as bus services, for which 確か is used instead.

Synonyms

• (reliable): 確か, 当てになる
• (inevitable): 必至, 必然的

Antonyms

• (reliable): 不確実, 当てにならない
• (inevitable): 不可能, 可能, 偶発的

Compounds

• 確実性
• 確実度

Noun

確実 ‎(hiragana かくじつ, romaji kakujitsu)

1. certainty, reliability
2. certainty, inevitability, necessity
3. soundness

Synonyms

• (inevitability): 必至, 必然

Antonyms

• (reliability): 不確実
• (inevitability): 不可能, 可能, 偶然