nonfissile

/nɑnˈfɪsəl/
adjective
  1. Not capable of undergoing nuclear fission; unable to split into smaller atoms to release energy.
    • Uranium-238 is nonfissile and cannot be used directly in most nuclear reactors.
    • The lab stored nonfissile materials separately from the radioactive fuel.
    • Engineers tested the nonfissile properties of the sample to ensure it was safe for transport.
Antonyms
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