Japanese symbol for “intramuscular”

筋肉内

きんにくない

Romaji: kinnikunai

intramuscular

In Japanese, intramuscular is 筋肉内, read きんにくない (kinnikunai).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

adj-no, n intramuscular (med)

Kanji and stroke order

筋

muscle, sinew, tendon

on: キン
kun: すじ

12 strokes · JLPT 1

肉

meat

on: ニク
kun: しし

6 strokes · JLPT 3

内

inside, within, between

on: ナイ、ダイ
kun: うち

4 strokes · JLPT 2

Related words

Words that share a kanji.

Word	Reading	Meaning
筋肉	きんにく kinniku	muscle
鉄筋	てっきん tekkin	rebar; (iron) reinforcing bar; reinforcing steel
一筋	ひとすじ hitosuji	one line; one stretch (e.g. of road); one strand (e.g. of hair)
道筋	みちすじ michisuji	course (of a road, moving object, etc.); way; route
背筋	せすじ sesuji	spine; line of the backbone
筋力	きんりょく kinryoku	physical strength; muscle strength
肉体	にくたい nikutai	the body; the flesh; the outer man
皮肉	ひにく hiniku	irony; sarcasm; cynicism
内容	ないよう naiyou	contents; content; substance

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.