一応(いちおう)

いちおう
adverb
more or less, tentatively, just in case
1. more or less, tentatively, for now
To a minimal acceptable degree, though not perfectly or completely.
一応(いちおう)終(お)わりました。
It's more or less finished.
Implies not perfect but acceptable
一応(いちおう)分(わ)かりました。
I more or less understand.
一応(いちおう)準備(じゅんび)はできています。
I'm more or less prepared.
2. just in case, just to be sure
As a precaution or for confirmation purposes.
一応(いちおう)確認(かくにん)しておきます。
I'll confirm just to be sure.
一応(いちおう)傘(かさ)を持(も)っていこう。
Let's take an umbrella just in case.
一応(いちおう)聞(き)いてみます。
I'll ask just to be sure.

一応(いちおう) is one of the most frequently used hedging words in Japanese. It softens assertions and adds nuance in two main ways.

SENSE 1 — "more or less":

Implies something meets a minimum standard but is not perfect or complete. Adds a tone of modesty or qualification.

  • 一応(いちおう)終(お)わった: finished (but maybe not perfectly)
  • 一応(いちおう)分(わ)かる: I understand (to some extent)
  • 一応(いちおう)プロです: I'm technically a professional (said modestly)

SENSE 2 — "just in case":

Indicates a precautionary action done for confirmation or safety.

REGISTER:
Very common in casual and semi-formal speech. Frequently used in workplace communication to sound less assertive or to hedge politely.

COMMON MISTAKE:
Learners sometimes confuse 一応(いちおう) with 一番(いちばん) (most, number one) due to the shared 一(いち). They are unrelated in meaning.

general
Added 2026.1.9 20:57 · Revised 2026.5.17 5:08
01500/01721_ichiou