unobtainium

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Noun[change]

Singular
unobtainium

Plural
none

  1. (humor) (neologism) (uncountable) Unobtainium is a fictional material that has extraordinary properties and is considered very difficult, maybe even impossible, to obtain.
    Science-fiction works have a lot of devices that could not even exist if they were not made of unobtainium!

Related words[change]