<p><strong>Adjective</strong></p><ul><li>beyond what is usual, ordinary, regular, or established: extraordinary costs.</li><li>Synonyms: inordinate</li><li>Antonyms: usual, common</li><li>exceptional in character, amount, extent, degree, etc.; noteworthy; remarkable: extraordinary speed; an extraordinary man.</li><li>Synonyms: signal, special, phenomenal, rare, singular, uncommon</li><li>Antonyms: usual, common</li><li>(of an official, employee, etc.) outside of or additional to the ordinary staff; having a special, often temporary task or responsibility: minister extraordinary and plenipotentiary.</li></ul>