<p><strong>Adjective</strong></p><ul><li>assumed or entertained as a theoretical possibility, invented example, premise for argument’s sake, etc.; supposed.</li><li>relating to or characterized by the use of assumptions for argument’s sake or of provisional, informed conjectures to guide investigation.</li><li>highly conjectural; not well supported by available evidence.</li><li>conditional.</li><li>tending to resort to theoretical assumptions, conditional propositions, invented examples, etc., especially unrealistic ones.</li></ul><p><strong>Noun</strong></p><ul><li>a hypothetical situation, instance, etc.: The Secretary of Defense refused to discuss hypotheticals with the reporters.</li></ul>