一 切(いっさい)

いっさい

adverb, noun

all; entirely; (not) at all; everything

1. (not) at all; entirely; absolutely (with negative)

Used with negative expressions to mean "not at all" or "absolutely not." Emphasizes complete absence or denial.

I don't know anything about him at all.

We take absolutely no responsibility.

一切(いっさい)関係(かんけい)ないと言(い)い張(は)った。

They insisted they had nothing to do with it at all.

We will refrain from making any comments whatsoever on this matter.

I don't drink or smoke at all, so my health checkup results are always good.

2. all; everything; the whole

Refers to everything without exception. Often used with nouns to mean "all of something."

I left everything from moving preparations to paperwork to the service company.

The company will cover all expenses.

Upon resignation, all outstanding payments need to be settled.

After the accident, he lost all of his memories.

TWO MAIN USES:

1) WITH NEGATIVE: Emphasizes complete absence

2) AS NOUN: Everything, all

COMMON EXPRESSIONS:

LEGAL/BUSINESS USAGE:
一切(いっさい) is commonly used in disclaimers, contracts, and formal notices to express absolute terms.

ORIGIN:
From Buddhist terminology meaning "all things" or "everything."

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Added 2026.1.18 13:00 · Revised 2026.6.10 9:32

06500/06662_issai