unproven
US /ʌnˈpruː.vən/
UK /ʌnˈpruː.vən/
形容詞
証明されていない
not having been shown to be good enough or to be able to do something:
例:
•
It would be unwise to throw billions at unproven technology.
証明されていない
not having been shown to be good enough or to be able to do something: