seriousness
adjective(se-ri-ous)
thoughtful or subdued in appearance or manner : sober
seriousness
adjective(se-ri-ous)
requiring much thought or work
seriousness
adjective(se-ri-ous)
of or relating to a matter of importance
seriousness
idiom(se-ri-ous)
in a serious way —used to stress that a statement, question, etc., is not a joke