celebration 11 Associations

solemnization solemnisation ritual (generic term)

earnest 7 Associations

sincere solemn serious (similar term)

earnestness 11 Associations

seriousness sincerity gravity (generic term) solemnity (generic term)

grave 5 Associations

sedate sober solemn serious (similar term)

sedate 6 Associations

grave sober solemn serious (similar term)