noun. The state of being alone or without company.

noun. A state of being alone, or without company; solitariness.

noun. The state of being alone; solitude, isolation.

noun. a disposition toward being alone

"You should not be without a greeting from me at Christmastime, when in the midst of the festivities your feeling of aloneness is apt to weigh more heavily upon you."

disposition  temperament  

friendlessness  reclusiveness  

again  aimlessness  bareness  blankness  bleakness  

solitariness  solitude