Japanese symbol for “optimisation”

最適化

さいてきか

Romaji: saitekika

optimization; optimisation

In Japanese, optimisation is 最適化, read さいてきか (saitekika).

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

n, vs, vt optimization; optimisation

Kanji and stroke order

最

utmost, most, extreme

on: サイ、シュ
kun: もっと.も、つま

12 strokes · JLPT 2

適

suitable, occasional, rare

on: テキ
kun: かな.う

14 strokes · JLPT 2

化

change, take the form of, influence

on: カ、ケ
kun: ば.ける、ば.かす、ふ.ける、け.する

4 strokes · JLPT 2

Related words

Words that share a kanji.

Word	Reading	Meaning
最近	さいきん saikin	recently; lately; these days
最後	さいご saigo	end; conclusion
最初	さいしょ saisho	beginning; outset; first
最高	さいこう saikou	best; supreme; wonderful
最終	さいしゅう saishuu	last; final; closing
最大	さいだい saidai	biggest; greatest; largest
適用	てきよう tekiyou	application (of a rule, law, method, etc.)
適当	てきとう tekitou	suitable; proper; appropriate
文化	ぶんか bunka	culture; civilization; civilisation

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.