<p><strong>Adjective</strong></p><ul><li>Capable of being defended against assault or injury: The troops were bivouacked in a defensible position.</li><li>That can be defended in argument; justifiable.</li></ul><p><strong>Synonyms</strong></p><ul><li>Warrantable</li><li>Allowable</li><li>Tenable</li><li>Fit</li><li>Suitable</li></ul>