felicity

noun
1
great happiness
شادمانی, سعادت, خوشحالی
2
the quality of being well chosen or suitable
برازندگی, مناسبت
The story is told with great felicity of style.
3
well-chosen or successful features, especially in a speech or piece of writing
بلاغت, خوش بیانی, درستی کلام
Her book displays many subtle linguistic felicities.
The pianist’s performance contained no shortage of felicities.