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sterile

/ˈstɛɹəl/ adjective C2
  1. Unable to reproduce (or procreate).
  2. Terse; lacking sentiment or emotional stimulation, as in a manner of speaking. (figuratively)
  3. Fruitless, uninspiring, or unproductive. (figuratively)
  4. Germless; free from all living or viable microorganisms. · a sterile kitchen table
  5. Permanently uninhabitable (as in a planet like Earth) to all life, including even microbes.
  6. Free from dangerous objects, as a zone in an airport that can be only be entered via a security checkpoint.
  7. Of weapons: foreign-made and untraceable to the United States. (US)
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From the library

A long series of sterile weeks lay behind us, and here at last there was a fitting object for those remarkable powers which, like all special gifts, become irksome to their owner when they are not in use.
The Valley of Fear, p. 19 · C1
These sterile corporate apologies usually ring false, exacerbating the original grievance by insulting the intelligence of the affected stakeholders.
The Art of the Apology, p. 1 · C2
The implications of these psychological findings resonate far beyond the sterile confines of the laboratory, carrying particularly immense weight within the judicial system.
The Unreliable Witness, p. 1 · C2

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Words, meanings, pronunciations and translations from Wiktionary (CC BY-SA 4.0); how common each word is from wordfreq. Made into this dictionary by FluentPlex.