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non-interchangeable

/nɒn ɪnˈtɜːrˌtʃeɪnəbəl/ · non.in.ter.chan.ga.ble
adjective
  1. Not capable of being exchanged or replaced with something else. The non-interchangeable parts of the engine required specialized tools for repair.
noun
  1. An item that cannot be exchanged or replaced with something else. The non-interchangeable component of the device was a major design flaw.
Did you know? The concept of non-interchangeable parts is crucial in engineering and design, as it ensures that critical components are not easily replaced or tampered with, maintaining the integrity and functionality of a system or device.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 4, 2026