unproven
uhn prooh vuhn
- a not proved
- While a similar link between hyperactivity and sugar remains unproven, Hallowell cautions parents to watch the sweets too.
- In recent years, the curative promises of embryonic stem cells and therapeutic cloning methods have outshone other research, but these techniques are still too new and unproven to .
- His party expelled him amid yet unproven but well-publicized allegations of treason, corruption, adultery, a homosexual dalliance and holding a suggestive phone conversation with .