The most common reasons for proposal rejection boil down to a surprisingly small set of simple and familiar failures: Deadline for submission was not met. Proposal topic was not appropriate to the funding agency to which it was submitted. Guidelines for proposal content, format, and/or length were not followed exactly.

What does it mean to reject a proposal?

If you reject something such as a proposal, a request, or an offer, you do not accept it or you do not agree to it.

What are you going to do to ensure your proposal will not be rejected?

Your proposal should be clear and should flow well. You should state the objectives of the research and exactly how you plan to attain them. Ensure that all the objectives directly relate to your hypothesis. Thus, the grant committee will understand the clear thought behind the proposal.