<p><strong>Noun:</strong></p><ul><li>The qualities or attributes of a hero or heroine: He showed great heroism in battle.</li><li>Synonyms:<ul><li>Intrepidity</li><li>Fortitude</li><li>Daring</li><li>Courage</li><li>Bravery</li><li>Gallantry</li><li>Prowess</li><li>Valor</li></ul></li><li>Antonyms:<ul><li>Timidity</li><li>Cowardice</li></ul></li><li>Heroic conduct; courageous action: Pat's returning into the burning building was true heroism.</li></ul>