| Term | Definition |
| Cluster A | Paranoid, Schizoid, Schizotypal) odd or eccentric |
| Paranoid | Suspicious of motives, excessive need for being self-sufficient, don't confide, misinterprets compliments, guarded, lack sensitivity, preoccupied with trustworthiness |
| Schizoid | Featured detachment from social relationships & a restricted range of emotions |
| Schizotypal | Severe form of schizoid |
| Cluster B | Antisocial, Borderline, Narcissistic, Histrionic (Dramatic, Emotional, Erratic, Manipulative) |
| Histrionic | Theatrical, life of party, crave excitement; fake, fish for compliments, seductive |
| Narcissistic | Self love, boastful, need to be admired, think are superior, don't want flaws revealed, exploit to meet own needs, sense of entitlement, lack sensitivity |
| Antisocial | No remorse, manipulate for profit, irresponsible (mafia type) appears calm and charming, lie, impulsive |
| Borderline | Mood swings, stormy relationships, rage, impulsive, risky behaviors, see as black and white, splitting |
| Splitting | See someone as loving and nurturing then cruel and rejecting |
| Cluster C | Avoidant, Dependent, OCD, Avoidant (Anxious or Fearful) |
| Avoidant | Socially withdrawn, avoid activities b/c fear of criticism, low self-esteem, don't take promotions, quiet |
| Dependent | Excessive need to be taken care of, submissive, difficulty making decisions |
| Obsessive-Compulsive | High need for control, makes lists, hoards, superior attitude, don't take time off |