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unthreaded

unthreaded

1 6.7
A smooth bolt or pipe you cannot screw into another piece
  • adjective
  • /ʌnˈθrɛdɪd/
  • Specialized
: sin rosca
  • Always check if the rod is unthreaded before attempting to attach it.

Examples

  • This pipe is unthreaded, so it cannot be screwed into the connector.

  • This bolt is unthreaded for safety.

  • The mechanic needed an unthreaded bolt for the special fitting.

  • The unthreaded pipe fits perfectly in the connection.

  • The pipe is made from unthreaded material, making it suitable for smooth connections.

  • The unthreaded shaft allows for easy insertion into the socket without the need for twisting.

  • We need to select an unthreaded component to avoid complications when assembling the parts.

Synonyms

threadless
vsunthreaded
1 4.8

Without sewing stitches or twisted ridges used to join parts

is smooth and lacks screw grooves for joining by rotation

Antonyms

threaded
  • Specialized
4 4.6

Having spiral grooves so a screw or bolt can be screwed into it

How Threaded

threaded
  • Specialized
4 4.6
unthreaded
  • Specialized
1 6.7

Surface Forms

unthreaded positive

Morphology

unthreaded = threaded (transparent) = un + thread + ed

The meaning is clearly derived from 'threaded' with the prefix 'un-' indicating the absence of threading.

Etymology

Unthreaded comes from un- 'not' and thread, which also names the spiral 'groove' on a screw that looks like a wrapped string. That's why an unthreaded bolt or pipe is 'smooth' and has no spiral for screwing parts together.