Formal and dignified, especially in manner or appearance. The graduation ceremony was a solemn occasion marked by traditional rituals.
Characterized by deep sincerity. He made a solemn promise to always be there for her.
Grave, sober, or mirthless, as a person, the face, speech, tone, or mood. The atmosphere at the funeral was solemn, with everyone speaking in hushed tones.
Performed or observed with full ceremony, ritual, or legal formality. The couple exchanged vows in a solemn ceremony before their families.