<p><strong>Adverb:</strong></p><ul><li>it is unfortunate that: Unfortunately, our flight was delayed for several hours.</li><li>in a way or to a degree that is unfortunate or unlucky: The project was unfortunately placed on hold until further notice.</li><li>in a way that is regrettable or unsuitable to the situation: Thank you for your comment, and I apologize for my unfortunately worded statement.</li></ul>