不ふ確かく実じつ

ふ

か

く

じ

つ

Meanings

Describes information, plans, promises, or situations that lack certainty, reliability, or authenticity. Often used in formal or written contexts.

〈事こと〉が不ふ確かく実じつだsomething is uncertain
将しょう来らいのことは不ふ確かく実じつだ。
The future is uncertain.
不ふ確かく実じつな情じょう報ほうunreliable or unconfirmed information
不ふ確かく実じつな情じょう報ほうに基もとづいて判はん断だんするのは危き険けんだ。
It's dangerous to make decisions based on unreliable information.
不ふ確かく実じつな状じょう況きょうan uncertain situation
不ふ確かく実じつな状じょう況きょうの中なかで意い思し決けっ定ていをしなければならなかった。
We had to make decisions amid an uncertain situation.
〈事こと〉の先さきが不ふ確かく実じつだthe future outcome of something is uncertain
世せ界かい経けい済ざいの先さきが不ふ確かく実じつだ。
The future of the world economy is uncertain.

不ふ確たしかN1
不確か is the more common, everyday word for something being uncertain, while 不確実 is more formal and typical of written or technical contexts.
曖あい昧まいN3
曖昧 describes something vague or ambiguous in meaning or expression, whereas 不確実 focuses on lack of certainty or reliability in facts, plans, or outcomes.
不ふ確かく定てい
不確定 stresses that something has not yet been decided or fixed, while 不確実 stresses that something cannot be trusted or relied upon.
不ふ安あん定ていN3
不確実 emphasizes uncertainty or unpredictability (e.g., of outcomes), while 不安定 focuses on a lack of steadiness or firmness in a state or system.

Formed from the prefix 不 (fu-, 'not') attached to 確実 (kakujitsu, 'certain', 'reliable').