Someone is considered a narcissist when patterns of extreme self-focus, entitlement, and lack of empathy are so strong and consistent that they damage their relationships, work, and overall life functioning.

Narcissist vs “just selfish”

Many people can act selfish or self-centered sometimes; that doesn’t automatically make them a narcissist.

Narcissistic personality disorder (NPD) is a diagnosable mental health condition where these traits are persistent, rigid, and cause significant problems for the person and those around them.

A key idea: it’s not about a single bad behavior or an annoying personality quirk, but a long-term pattern across situations (family, work, friendships, romantic relationships).

Core traits that make someone a narcissist

Clinicians and mental health resources tend to describe several core patterns:

  1. Grandiose self-importance
    • Believes they are more important, talented, or special than others.
    • Exaggerates achievements, expects to be recognized as superior even without real accomplishments.
  1. Need for admiration and attention
    • Constantly seeks praise, validation, or being the “center of the room.”
 * Can become upset, cold, or angry if they feel ignored.
  1. Lack of empathy
    • Has great difficulty recognizing or genuinely caring about other people’s feelings and needs.
 * Often dismisses, minimizes, or rationalizes how they hurt others.
  1. Sense of entitlement
    • Feels they deserve special treatment, exceptions to the rules, or “VIP” status by default.
 * Expects others to rearrange their lives around their wants and preferences.
  1. Exploitative behavior
    • Uses people as tools for attention, status, money, sex, or convenience.
 * May charm, guilt-trip, or manipulate to get what they want.
  1. Arrogance and superiority
    • Looks down on people seen as “less important” or “less intelligent.”
 * Can be snobbish, condescending, or mocking, especially toward those who challenge them.
  1. Fragile self-esteem under the surface
    • Despite the confident or boastful surface, their self-worth is often very fragile.
 * Criticism, rejection, or being “exposed” can trigger intense shame, defensiveness, or rage.
  1. Fantasy and image-obsession
    • Preoccupied with fantasies of unlimited success, power, beauty, or “perfect love.”
 * Invests heavily in maintaining a certain image, even if reality doesn’t match.

Types and styles of narcissism

Experts often talk about different styles of narcissism:

  • Overt (grandiose) narcissism
    • Loud, attention-seeking, obviously arrogant.
    • Boasts openly, dominates conversations, and expects admiration.
  • Covert (vulnerable) narcissism
    • More subtle, often appears shy, insecure, or victimized on the surface.
    • Still feels special and entitled, but complaints, envy, and hypersensitivity to criticism show it.

Both still revolve around the same core themes: an inflated sense of self, entitlement, and lack of real empathy, just expressed in different ways.

Common relationship patterns

In relationships, narcissistic patterns often look like:

  • Charm → control
    Early idealization (love-bombing, intense flattery, “soulmate” talk), then devaluing and criticism once they feel secure.

  • Gaslighting and blame-shifting
    Twisting facts so you doubt your memory or feelings, and making everything your fault.

  • Transactional caring
    Kindness mostly when it benefits their image or gets them something, not because they genuinely care.

  • Boundary violations
    Pushing past your “no,” invading privacy, ignoring your time, energy, and needs.

A Reddit commenter once summed up a narcissistic pattern of excuses like this: “If it happened, it wasn’t that bad; if it was, that’s not my fault; if it was, you deserved it.”

That isn’t a clinical definition, but it captures the way responsibility and empathy often get twisted.

Criteria for an actual diagnosis

For an official diagnosis of narcissistic personality disorder, mental health professionals look for a long-standing pattern of these traits across many areas of life, typically starting by early adulthood.

Usually, a person must show several (often 5 or more) of the hallmark traits—like grandiosity, need for admiration, lack of empathy, entitlement, envy, and exploitation—and these patterns must significantly impair relationships, work, or well-being.

Only a qualified mental health professional can diagnose NPD; online lists and checklists are just educational tools.

Why the label is used so often online

On forums and social media, “narcissist” has become a catch-all insult for people who are rude, selfish, or emotionally unavailable.

That trend reflects how many people have genuinely painful experiences with manipulative or emotionally harmful behavior, but it also means the term is frequently misused or over-applied.

A more careful approach is to describe behaviors (“they never apologize,” “they ignore my feelings,” “they guilt-trip me”) rather than diagnosing people from afar.

Quick HTML table of key traits

[1][5][3] [5][9][3] [1][3][5] [7][3][5] [3][5] [5][3] [7][1][3] [9][5][7]
Core aspect What it looks like
Grandiosity Exaggerates achievements, expects to be seen as superior.
Need for admiration Craves praise, attention, and recognition; upset when ignored.
Lack of empathy Minimizes others’ feelings, struggles to genuinely care.
Entitlement Believes they deserve special treatment and exceptions.
Exploitation Uses people as tools for goals or image.
Arrogance Looks down on others, mocks or dismisses them.
Fragile self-esteem Very sensitive to criticism, may react with rage or withdrawal.
Fantasy life Preoccupied with success, power, beauty, or ideal love.

If this topic feels personal

If you’re wondering whether you or someone in your life might be a narcissist, that by itself does not prove anything—many thoughtful, caring people worry about this after reading online content.
If the behavior you’re dealing with involves emotional abuse, gaslighting, or fear, speaking with a therapist or a trusted support service can be very helpful in sorting out what’s actually going on and how to protect your well- being.

TL;DR:
Someone is a narcissist when a strong mix of grandiosity, entitlement, need for admiration, lack of empathy, and exploitative behavior forms a stable, life-impacting pattern—often diagnosed as narcissistic personality disorder—rather than occasional selfishness or arrogance.

Information gathered from public forums or data available on the internet and portrayed here.