untested
[adjective]
Synonyms: untried, undemonstrated, unpracticed, unproved

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Antonyms: tested, tried

[TahlilGaran] English Synonym Dictionary ▲

un‧tested /ʌnˈtestəd, ʌnˈtestɪd/ adjective

1. untested ideas, methods, or people have not been used in a particular situation so you do not know what they are like:
an argument based on untested assumptions

2. an untested drug, medical treatment etc has not been given any scientific tests to discover if it is safe to use

[TahlilGaran] Dictionary of Contemporary English ▲