unproved theory

References in periodicals archive ?
And I'm enjoy it even if I could what was In my day, science was about hard facts, not some fashionable and unproved theory.
Kandun said all of the victims in the seven clusters were blood relatives, not spouses or in-laws, supporting an unproved theory that some people may have a genetic susceptibility to bird flu.
Evolution, understood as the development of species, including the human race, and dependent on genetic mutation and random variations in bodily advantages, and the survival of the fittest, is an unproved theory, no more.