低次元

ていじげん
noun, na-adjective
low-dimensional; low-level; petty
evaluationabstract
1. low-dimensional; having few dimensions
In mathematics and physics, having a small number of dimensions, as opposed to high-dimensional. Used of spaces, data, and models.
二次元(にじげん)は三次元(さんじげん)より低次元(ていじげん)だ。
Two dimensions are lower-dimensional than three.
データを低次元(ていじげん)に圧縮(あっしゅく)する。
Compress the data into fewer dimensions.
この手法(しゅほう)は低次元(ていじげん)の空間(くうかん)を数学的(すうがくてき)に扱(あつか)う。
This method treats low-dimensional space mathematically.
2. low-level; unsophisticated; petty; base
Figuratively, describing thinking, arguments, disputes, or content as base, crude, or beneath serious attention. Usually derogatory and most often used as the na-adjective 低次元(ていじげん)な.
そんな低次元(ていじげん)な争(あらそ)いはやめよう。
Let's stop such a petty quarrel.
議論(ぎろん)が低次元(ていじげん)すぎて話(はなし)にならない。
The discussion is too low-level to be worth having.
感情(かんじょう)にまかせた批判(ひはん)は低次元(ていじげん)だと言(い)われても仕方(しかた)がない。
Criticism driven by emotion can't complain if it's called low-level.

Formed from 低(てい) (low) + 次元(じげん) (dimension). The antonym is 高次元(こうじげん).

Usage

  • Sense 1 is a neutral technical term in math and science.
  • Sense 2 is a common, clearly negative judgment, almost always in the form 低次元(ていじげん)な: 低次元(ていじげん)な話(はなし) (a base topic), 低次元(ていじげん)な発想(はっそう) (unsophisticated thinking).

Similar words

  • 低俗(ていぞく): vulgar, lowbrow — overlaps with sense 2 but stresses coarse taste rather than a lack of intellectual level.

Related Words

Compare: 低俗(ていぞく) (vulgar, lowbrow)
general
Added 2026.7.11 9:20 · Revised 2026.9.2 13:02
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