The definition of 'seriouser' & the word 'seriouser' in example sentences or phrases

Adjective
1
concerned with work or important matters rather than play or trivialities
  1. a serious student of history
  2. a serious attempt to learn to ski
  3. gave me a serious look
  4. a serious young man
  5. are you serious or joking?
  6. Don't be so serious!
2
completely lacking in playfulness
Adjective satellite
1
of great consequence
  1. marriage is a serious matter
2
causing fear or anxiety by threatening great harm
  1. a dangerous operation
  2. a grave situation
  3. a grave illness
  4. grievous bodily harm
  5. a serious wound
  6. a serious turn of events
  7. a severe case of pneumonia
  8. a life-threatening disease
3
appealing to the mind
  1. good music
  2. a serious book
4
requiring effort or concentration; complex and not easy to answer or solve
  1. raised serious objections to the proposal
  2. the plan has a serious flaw

Synonyms of the word 'seriouser' & Antonyms of the word 'seriouser'.

Adjective
Synonymsserious, serious, unplayful, sober,
Antonymsfrivolous, playful,
Adjective satellite
Synonymsserious, grievous, grave, life-threatening, dangerous, serious, severe, serious, good, serious,