Deeply serious and sombre; grave.
Characterized by or performed with appropriate or great ceremony or formality.
Of or pertaining to religious ceremonies and rites; (generally) religious in nature; sacred.
Inspiring serious feelings or thoughts; sombrely impressive.
Of suspicious character, typically secretive or deceitful; shady.
Trivial, or of little importance.
Idle or frivolous.
The act of one who trifles; frivolous behaviour.