The best replacement for borderline is bipolar.

The best alternatives to borderline are rated as following:
★★★★★  bipolar
★★  histrionic
★★  sociopath
★★  narcissistic
★★  antisocial personality disorder
★  narcissistic personality disorder
★  antisocial
★  narcissist
★  narcissistic personality
★  aspergers
★  narcissism
★  complex ptsd
★  psychopath
  borderline
  ptsd
  bipolar disorder
  narcisme
  dependent personality disorder
  bipolaire
  codependent
  antisocial personality
  avoidant
  autisme
  dissociative identity disorder
  multiple personality disorder
  asperger's

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Speaking about borderline, one probably shouldn't forget about chris de burgh.

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