Japanese symbol for “unreliability”

不確実性

ふかくじつせい

Romaji: fukakujitsusei

uncertainty; indeterminacy; unreliability; unauthenticity

In Japanese, unreliability is 不確実性, read ふかくじつせい (fukakujitsusei).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

n uncertainty; indeterminacy; unreliability; unauthenticity

Kanji and stroke order

不

negative, non-, bad

on: フ、ブ

4 strokes · JLPT 3

確

assurance, firm, tight

on: カク、コウ
kun: たし.か、たし.かめる

15 strokes · JLPT 2

実

reality, truth, seed

on: ジツ、シツ
kun: み、みの.る、まこと、みの

8 strokes · JLPT 2

性

sex, gender, nature

on: セイ、ショウ
kun: さが

8 strokes · JLPT 2

Related words

Words that share a kanji.

Word	Reading	Meaning
不明	ふめい fumei	unclear; obscure; indistinct
不安	ふあん fuan	anxiety; uneasiness; worry
不足	ふそく fusoku	insufficiency; deficiency; shortage
不満	ふまん fuman	dissatisfaction; discontent; displeasure
不可能	ふかのう fukanou	impossible
不思議	ふしぎ fushigi	wonderful; marvelous; strange
確認	かくにん kakunin	confirmation; verification; validation
確か	たしか tashika	sure; certain; positive
実際	じっさい jissai	reality; actuality; truth
女性	じょせい josei	woman; female

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.