retractable

retractable — adjective

1. designed to be pulled or slid back into a larger object when no longer needed, s

1.形容詞B2
釋義

designed to be pulled or slid back into a larger object when no longer needed, so that the whole thing becomes more compact or protected.

例句

Tamar bought a retractable dog leash for walks around the neighbourhood.

collocation: retractable leash / retractable roof / retractable pen

The new stadium has a retractable roof that closes when it rains.

同義詞
  • collapsible

    suggests folding or compressing rather than sliding back into a housing

  • foldable

    implies simple bending along a line, less mechanical than retractable

  • withdrawable

    more formal; used for financial or official contexts, not everyday objects

反義詞

用法筆記

Commonly describes mechanical parts or everyday objects with a sliding or spring-loaded mechanism — pens, leashes, landing gear, sun roofs, and awnings.

常見錯誤

❌She bought a retractable umbrella that folds into a small circle.
✅She bought a collapsible umbrella that folds into a small circle.
💡'retractable' implies sliding or drawing back into a housing, while 'collapsible' implies folding together.