<p><strong>Adjective</strong></p><ul><li>of great weight; heavy; massive</li><li>awkward or unwieldy: He carried a ponderous burden on his back</li><li>dull and labored: a ponderous dissertation</li></ul><p><strong>Synonyms</strong></p><ul><li>tedious</li><li>dreary</li><li>boring</li><li>heavy</li></ul><p><strong>Antonyms</strong></p><ul><li>exciting</li><li>lively</li></ul>