How to say "blunt" in Japanese

Choosing the right word
  • 鈍いにぶいJLPT N2approx.Common
    i-adjectiveCovers the physical sense of blunt: an edge or point that is dull rather than sharp. It also means slow or dull generally, so context makes clear a knife or blade is meant.
  • 鈍らすにぶらすCommon
    godan verb, transitive verbThe transitive verb sense of blunt: to make something dull or less sharp, or to weaken it, as in blunting someone's enthusiasm or an edge. Choose this when 'blunt' is a verb.
    我々われわれは流感りゅうかんの広ひろがる速度そくどを鈍にぶらすことができるだろうか。↗
    Can we check the rapid spread of the 'flu?
  • na-adjective, nounDescribes a blunt, curt manner of speaking or behaving — abrupt and unrefined without necessarily being hostile. Usually written in kana alone. A typical context is someone who answers questions tersely.
    ビルのぶっきらぼうな態度たいどは誤解ごかいを生うむ原因げんいんになっている。↗
    Bill's abrupt manner causes him to be misunderstood.
  • 無愛想ぶあいそうCommon
    na-adjective, nounBlunt in the sense of unfriendly or surly: an unsociable, cold demeanor that puts people off. Stronger in its lack of warmth than mere curtness, as with a shopkeeper who barely acknowledges customers.
    彼女かのじょは私にひどく不ふ愛想あいそだった。↗
    She was very short with me.
  • そっけないJLPT N1approx.Common
    i-adjectiveBlunt as in cold, short, or curt replies and reactions that convey indifference. It emphasizes the flat, unenthusiastic feel of a response rather than an overall personality, unlike 無愛想.
    彼女かのじょはいつも僕ぼくにそっけない。↗
    She's always short with me.

Use 「鈍い」 for physically dull edges, 「鈍らす」 for the verb 'to blunt or weaken', and 「ぶっきらぼう」, 無愛想, or 「そっけない」 for blunt speech or manner, differing in degree of coldness.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android