non-concentric

IPA/nˈɒŋkənsˈɛntɹɪk/
IPA/nˈɑːŋkənsˈɛntɹɪk/

non-concentric — adjective

1. describing circles, rings, or similar parts that do not share one center point.

1.adjectiveC1
Definition

describing circles, rings, or similar parts that do not share one center point.

Example

The engineer drew two non-concentric circles on the whiteboard.

non-concentric + circles

These non-concentric rings leave a wider gap on one side.

uneven gap between rings

Common collocations
  • non-concentric circles
  • non-concentric rings
  • non-concentric holes
  • non-concentric tubes
  • non-concentric layers
Synonyms
  • off-center

    broader and less exact; it can describe one part shifted away from the middle, not a set of rings with different centers

  • eccentric

    more technical in mechanics and geometry, especially for rotating parts

Antonyms
  • concentric

    describes circles or rings that share the same center

Grammar Patterns

non-concentric + noun (circles, rings, holes)

be + non-concentric

Usage Note

Used mainly in geometry, engineering, and design for circles, rings, holes, or layers that should normally share one center. It often highlights an uneven gap, tilt, or misalignment rather than just shape.

Word family

Synonym discussion

Sense: adjective/1

Non-concentric is used when two or more circles, rings, holes, or layers do not line up around one shared center. Concentric is the direct opposite and describes parts that sit evenly around the same middle point. Off-center is broader and can describe a single thing that has been placed away from the middle, so it does not always suggest more than one circular part. Eccentric is more technical and is common in mechanics or geometry, especially when a rotating part is not centered as expected.

non-concentric ↗concentric ↗off-center ↗eccentric ↗

Common collocations

Nouns

Phrases

  • non-concentric circles
  • non-concentric rings
  • non-concentric holes

Etymology

LatinEnglish

Built in English from the negative prefix non- and concentric. It is used mainly in geometry, engineering, and design to describe circles, rings, holes, or layers that do not share one center point.