How to say "persistent" in Japanese

Choosing the right word
  • 執拗しつようCommon
    na-adjectiveCovers persistent in the sense of relentless and unrelenting, refusing to let go; the tone is often negative. Typical of persistent questioning, pursuit, or attacks that simply will not stop.
    彼女かのじょは彼かれの執拗しつようさにうんざりしていた。↗
    She was disgusted at his persistence.
  • しつこいJLPT N2approx.Common
    i-adjectiveDescribes insistent, obstinate persistence that grates on people — the caller who will not take no for an answer. The nuance is negative: annoying rather than admirable.
    ここにしつこい痛いたみがあります。↗
    I have a persistent pain here.
  • 粘り強いねばりづよいCommon
    i-adjectivePersistent in the positive sense of tenacious, persevering effort — sticking with a task, negotiation, or match until it succeeds. This is the word for persistence you praise, not persistence that annoys.
    彼かれは粘り強ねばりづよい精神せいしんの持ち主もちぬしだ。↗
    He has a spirit of tenacity.
  • 不断ふだんCommon
    no-adjective, na-adjectiveA noun for the constant, unremitting side of persistent — persistence maintained without pause over a long stretch, typically of effort or practice. It names the quality itself rather than describing a person as annoying.
    The brain needs a continuous supply of blood.
  • 頑強がんきょうCommon
    na-adjectivePersistent as dogged toughness — holding out stubbornly and refusing to yield under pressure, as in hard-fought negotiations or resistance. The emphasis is on strength and unyieldingness rather than repetition.
    The authorities met with unyielding opposition from the locals.

Choose 執拗 or 「しつこい」 for relentless, annoying persistence, 「粘り強い」 for admirable, persevering effort, 頑強 for dogged toughness that refuses to yield, and 不断 for constant, unremitting persistence over time.

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