unsex in WordNet English dictionary

1. make infertile
   "in some countries, people with genetically transmissible disabilites are sterilized"
   sterilize  sterilise  desex  unsex  desexualize  desexualise  fix 
   
2. remove the qualities typical of one's sex
   "She unsexed herself"
   unsex 
   
3. deprive of sex or sexual powers
   unsex