unproven

Several allegations circulated on social media but remain unproven.

Arguably, more commercial interest might be just what was needed to help expensive or unproven technologies take off.

These actions are part of a pattern where Kennedy promotes unproven theories while the agency under leadership has issued assessments citing sources that did not exist.

GM had to commit to long-term purchase agreements with new suppliers, in some cases relatively unproven ones, whose magnets are more expensive than the Chinese ones.

Autism researchers and doctors say that the claim is unproven, and that women are safe taking the medicine as needed, in consultation with their physician.