untested
adj. B2 Upper Intermediate US //ənˈtɛstɪd// UK //ʌntˈɛstɪd// untest·ed
adj. not having been tried or tested yet. You use this to describe something that is new and might not work perfectly.
adj. not having been subjected to a trial or examination. Often used to describe theories, products, or methods that lack a proven track record.
The new software is still untested and may have bugs.
The team is hesitant to launch the untested vaccine without more data on its long-term effects.
While the theory is promising, it remains untested in a real-world environment where variables are far more complex than in a controlled laboratory setting.