adj.
 relating to monks, nuns, etc., or the buildings in which they live. 
▸resembling monks or their way of life, especially in being austere or celibate.
n.
 a monk or other member of a monastic order.
 
  Derivative
  
    - monastically adv.
  - monasticism n.
 
   
  Etymology
  ME: from late L. monasticus, from Gk monastikos, from monazein ‘live alone’.