fraternal

Adjective

• like or characteristic of or befitting a brother
  • brotherly feelings
    
  • close fraternal ties
    

• (of twins) derived from two separate fertilized ova
  • fraternal twins are biovular
    

• of or relating to a fraternity or society of usually men
  • a fraternal order
    

Related words

• Synonyms: 
  brotherly , brotherlike , biovular
• Antonyms: 
  sisterly , sisterlike , sororal , identical , monovular