<p><strong>Adjective:</strong></p><ul><li>Not complete; lacking some part.</li><li>Synonyms: fragmentary, partial, unfinished.</li><li>Football: (of a forward pass) not completed; not caught by a receiver.</li><li>Engineering: noting a truss the panel points of which are not entirely connected so as to form a system of triangles.</li><li>Logic, Philosophy: (of an expression or symbol) meaningful only in a specific context.</li><li>(of a set of axioms) such that there is at least one true proposition (able to be formulated in terms of the basic ideas of a given system) that is not deducible from the set.</li></ul><p><strong>Noun:</strong></p><ul><li>Education: a temporary grade indicating that a student has not fulfilled one or more of the essential requirements for a course: If I don't hand in my term paper for last semester's English course, the professor is going to change my incomplete to an F.</li></ul>