<p><strong>Adjective</strong></p><ul><li>penetrating or entering deeply into subjects of thought or knowledge; having deep insight or understanding: a profound thinker.</li><li>originating in or penetrating to the depths of one's being: profound grief.</li><li>being or going far beneath what is superficial, external, or obvious: profound insight.</li><li>of deep meaning; of great and broadly inclusive significance: a profound book.</li><li>pervasive or intense; thorough; complete: a profound silence.</li><li>extending, situated, or originating far down, or far beneath the surface: the profound depths of the ocean.</li><li>bending or passing far downward; low: a profound bow.</li></ul><p><strong>Noun</strong></p><ul><li>something that is profound.</li><li>the deep sea; ocean.</li><li>depth; abyss.</li></ul>