be unsuccessful

See: fail, lose
References in classic literature ?
It was then he rejoiced at his precaution in taking the timber, for without it he would have been unable, perhaps, to reach the vessel -- certainly to return to shore, should he be unsuccessful in attracting attention.
Factors which may significantly change or prevent our forward-looking statements from fruition include that we may be unsuccessful in developing any products; that our technology may not be validated as we progress further and our methods may not be accepted by the scientific community; that unforeseen scientific difficulties develop with our process; that our patents are not sufficient to protect essential aspects of our technology; that competitors may invent better technology; that our products may not work as well as hoped or worse, that our products may harm recipients; and that we may not be able raise funds for development or working capital when we require it.
However, should Wilton Re be unsuccessful in its capital raising initiatives, A.