1. A method, strategy, or way of dealing with something that has not yet been tested, validated, or demonstrated to work effectively
The startup's unproven approach to marketing raised concerns among investors.
A abordagem não comprovada da startup para marketing levantou preocupações entre os investidores.
2. A technique or procedure lacking empirical evidence or established results
Doctors are cautious about recommending unproven approaches for treating the disease.
Os médicos são cautelosos ao recomendar abordagens não comprovadas para tratar a doença.