形容词
1. 严肃的;庄严的
Someone or something that is solemn is very serious rather than cheerful or humorous.
1. characterized by a firm and humorless belief in the validity of your opinions
e.g. both sides were deeply in earnest, even passionate
an entirely sincere and cruel tyrant
a film with a solemn social message
2. dignified and somber in manner or character and committed to keeping promises
e.g. a grave God-fearing man
a quiet sedate nature
as sober as a judge
a solemn promise
the judge was solemn as he pronounced sentence