/ˈnɑn ˈɑbvɪəsnəs/ – Noun
Definition: Không rõ ràng, không hiển nhiên.
A more thorough explanation: (of an invention) the state of not being obvious to a person skilled in the art of the relevant invention, and having involved an inventive step
Example: The invention as described in the patent was neither new nor did it meet the test of non-obviousness.