Synonyms for Seriousmindedness:

• n.

  •earnestness (noun)
  • intensity,
  • sincerity,
  • firmness,
  • serious-mindedness,
  • persistence,
  • resolution,
  • gravity,
  • stress,
  • perseverance,
  • eagerness,
  • deliberation,
  • passion,
  • devotion,
  • fervor,
  • zeal,
  • ardor,
  • purposefulness,
  • attentiveness,
  • resolve,
  • enthusiasm,
  • engrossment,
  • warmth,
  • decision,
  • concentration,
  • urgency,
  • intentness,
  • solemnity,
  • doggedness,
  • vehemence,
  • sobriety,
  • tenacity,
  • absorption,
  • keenness.
  •seriousness (noun)
  • earnest,
  • sober-mindedness,
  • sedateness,
  • staidness,
  • thoughtfulness,
  • coolness,
  • sternness,
  • calmness,
  • earnestness.

Antonyms for Seriousmindedness:

• n.

  • earnestness
    weakness, lethargy, indecision, question, indifference, coolness, indolence, insincerity, coldness, flippancy, wavering, idleness, unimportance, apathy.
  • seriousness
    lightness, triviality, humor, funniness.