A highly desirable material that is hypothetical, scientifically impossible, extremely rare, costly, or fictional, or has some of these properties in combination: what type of cabling are we talking about, steel, composite, unobtainium?
More example sentences
- Indeed, the claims made for this technology sometimes make it sound like the legendary aerospace material ‘unobtainium.’
- Veteran space industry analyst John Pike, director of GlobalSecurity.org, likes to joke that the required substance should be dubbed ‘unobtainium.’
- But the Japanese 8mm Nambu cartridge might as well have been made of unobtainium.