一いっ貫かん性せい

い

っ

か

ん

せ

い

Meanings

1

Refers to logical consistency, uniformity, or lack of contradiction in ideas, actions, or policies.

が

ない

。

His arguments lack consistency.

この計けい画かくには一いっ貫かん性せいが必ひつ要ようだ。

This plan needs coherence.

一いっ貫かんN1
一貫性 is the abstract noun for 'consistency' as a quality, while 一貫 is used more broadly as a noun/verb describing something being carried through consistently.
つじつまN1
一貫性 is a more formal term for logical consistency used in academic or business contexts, while つじつま is the everyday word focused on details matching up in a story or explanation.
整せい合ごう
一貫性 emphasizes consistency maintained over time or across actions, while 整合 focuses on logical coherence or alignment between elements at a given point.

Compound of 一貫 (いっかん, 'consistent, through') and 性 (せい, '-ness, nature').