"Unusable" Natural Recordings by Native Speakers
1. Not usable: unable to be used for any purpose.
2. Not productive or functioning properly.
Ununhexium is a synthetic, highly radioactive, superheavy element with the atomic number 116. It is an element that is not found naturally on Earth, but can be produced in a laboratory.
Ununoctium is a synthetic chemical element with the atomic number 118, and it is one of the 118 known elements. It is a noble gas and is placed in the group 18 of the periodic table. The name ununquadio is a temporary, systematic name that is used until a permanent one is officially adopted by the International Union of Pure and Applied Chemistry (IUPAC).<br><br>The element was first synthesized in 2000 by a team of scientists at the Joint Institute for Nuclear Research in Dubna, Russia, and it was officially recognized as an element in 2016. The discovery was made by Victor Vysotsky, Yuri Oganessian, and their team, who bombarded calcium with calcium ions to produce the element.<br><br>Ununoctium is highly unstable and only exists for a short time, decaying into other elements. The half-life of ununoctium is less than 0.89 milliseconds.
Not used or employed; not currently in use, employment, or circulation.<br><br>Example: "The unused materials were sold at a discount."
Exceeding the normal or expected range. Unconventional, strange, or different from what is considered typical or usual.
The quality of being unusual or not ordinary; a characteristic that deviates from what is conventional, normal, or expected.