noun (n)

• an earnest and sincere feeling

  perasaan yang tulus dan ikhlas

  Synonym:
  earnestness, seriousness
  

  source: wordnet30
• the quality of being open and truthful; not deceitful or hypocritical

  kualitas bersikap terbuka dan jujur; tidak culas atau munafik

  Example:
  His sincerity inspired belief.
  They demanded some proof of my sincerity.
  

  Antonym:
  falseness, hollowness, insincerity
  

  source: wordnet30
• a quality of naturalness and simplicity

  sebuah kualitas kesewajaran dan kesederhanaan

  Example:
  The simple sincerity of folk songs.
  

  Synonym:
  unassumingness
  

  source: wordnet30
• the trait of being serious

  yang menjadi sifat serius

  Synonym:
  earnestness, serious-mindedness, seriousness
  Antonym:
  frivolity, frivolousness
  

  source: wordnet30
• The quality or state of being sincere; honesty of mind or intention; freedom from simulation, hypocrisy, disguise, or false pretense; sincereness.

  kualiti atau keadaan yang tulus; kejujuran dari pikiran atau niat; kebebasan dari simulasi, kemunafikan, penyamaran, atau palsu buatan; sincereness.

  source: webster1913