What kind of person lies by omission?

Asked by: Dr. Uriel Bosco Sr.  |  Last update: April 21, 2026
Score: 4.5/5 (71 votes)

A person who lies by omission is often motivated by fear, shame, low self-worth, or a desire to control a situation/relationship, leading them to hide crucial information to avoid conflict, judgment, or potential abandonment, rather than out of forgetfulness; they might fear negative reactions, protect a fragile self-image, or subconsciously sabotage connections due to deep-seated insecurity or past trauma.

Why do people lie by omission?

Lies of omission can also be a form of self-destructive behavior when the individual's motive is to sabotage relationships, either consciously or subconsciously. This manipulation may stem from feelings of unworthiness, fear of intimacy, or deep-seated guilt that drives them to push others away.

Is lying by omission a red flag?

Yes. Generally leaving out important details is considered a lie, under the idea of a lie of omission, If a reasonable person would have otherwise believed those details to be pertinent.

What personality disorder is associated with lying?

Mythomania and Personality Disorders

A predisposition to pathological lying behavior is particularly common in antisocial personality disorder, narcissistic personality disorder, borderline personality disorder, bipolar disorder, and psychosis7.

What is lying by omission called?

Lying by omission, also known as a continuing misrepresentation or quote mining, occurs when an important fact is left out in order to foster a misconception.

Pathological Lying Vs Normal Lying? How To Tell the Difference

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What do you call someone who doesn't tell the full truth?

A liar is someone who doesn't tell the truth.

What does God say about lying by omission?

A sin of omission is when we neglect to do what we know is right. James touches on an often overlooked concept in his epistle to the first-century Christian Church. In James 4:17, he writes: “Therefore, to him who knows to do good and does not do it, to him it is sin.”

What mental illness causes people to be manipulative?

Manipulative tendencies may derive from cluster B personality disorders such as narcissistic personality disorder, antisocial personality disorder, and borderline personality disorder. Manipulative behavior has also been related with one's level of emotional intelligence.

What is the hardest mental illness to live with?

There's no single "hardest" mental illness, as experiences vary, but Schizophrenia and Borderline Personality Disorder (BPD) are frequently cited due to their severe impact on reality, relationships, and daily functioning, alongside conditions like Anorexia Nervosa, Bipolar Disorder, and severe OCD, which profoundly disrupt life with symptoms like delusions, intense mood swings, uncontrollable compulsions, and extreme self-starvation, often compounded by stigma and cognitive challenges. 

Can you have a relationship with a compulsive liar?

Either way, a relationship with a pathological liar or a compulsive liar will be the worst relationship of your life. The relationship that you have with them will be just as bad as the one they have with themselves. You can never “rescue” a liar. You can only get away.

What is the number one thing that destroys relationships?

While many factors contribute, experts often cite poor communication, lack of trust, and contempt (feeling superior to your partner) as the primary reasons relationships fail, with deeper issues like unaddressed past trauma, incompatibility, or competition often fueling these breakdowns, rather than just surface-level disagreements. Ultimately, it's often the inability to navigate conflict constructively and meet each other's fundamental needs that leads to disconnection and endings.
 

What is the 3 6 9 rule in relationships?

The 3-6-9 rule is a relationship guideline suggesting three stages in the first year: the first 3 months are the "honeymoon" phase (infatuation); months 3-6 involve growing conflict as flaws appear; and months 6-9 are the "decision-making" stage where couples face real issues, with successful navigation leading to stability, while also advising to delay major commitments like sex or moving in until at least 3, 6, or 9 months to let love chemicals settle and see the real person.
 

What are the 7 signs of lying?

The 7 common signs of lying involve changes in verbal/vocal patterns (vagueness, repetition, excessive detail, pitch changes), inconsistent body language (fidgeting, covering mouth, stiff posture, lack of eye contact or too much), physiological stress indicators (heavy breathing, sweating, flushing), linguistic distancing (fewer "I" statements), delayed emotional responses, avoidance, and using truth-claiming phrases like "to be honest" to overcompensate. No single sign guarantees a lie, but clusters of these behaviors, especially deviations from someone's normal behavior, can signal deception. 

What kind of trauma causes lying?

Trauma, especially childhood abuse (physical, emotional, sexual) or neglect, often triggers lying as a survival mechanism to cope with pain, avoid punishment, gain approval, or manage fragmented reality, with specific types like PTSD and Complex PTSD (C-PTSD) frequently linked to deceptive behaviors, where lies serve to create a facade of control or fill gaps in memory. Inconsistent parenting, where truth is punished or reality is denied (gaslighting), also teaches children to lie, disrupting their sense of self and making untruths a default response to perceived threats or unmet needs, according to sources from Psychology Today, Palo Alto University, Stable Moments, New Harbinger Publications, Psych Central, Cyti Psychological, Australian Childhood Foundation, and The Bridge to Recovery. 

What is the 5 5 5 rule in relationships?

The 5-5-5 method is simple, according to Clarke. When a disagreement comes up, each partner will take 5 minutes to speak while the other simply listens, and then they use the final five minutes to talk it through.

What are the five signs someone is lying?

  • A Change in Speech Patterns. One telltale sign someone may not be telling the whole truth is irregular speech. ...
  • The Use of Non-Congruent Gestures. ...
  • Not Saying Enough. ...
  • Saying Too Much. ...
  • An Unusual Rise or Fall in Vocal Tone. ...
  • Direction of Their Eyes. ...
  • Covering Their Mouth or Eyes. ...
  • Excessive Fidgeting.

How to spot a borderline woman?

Symptoms - Borderline personality disorder

  1. emotional instability – the psychological term for this is "affective dysregulation"
  2. disturbed patterns of thinking or perception – "cognitive distortions" or "perceptual distortions"
  3. impulsive behaviour.
  4. intense but unstable relationships with others.

What mental illness causes the most suffering?

Borderline personality disorder (BPD) has long been believed to be a disorder that produces the most intense emotional pain and distress in those who have this condition. Studies have shown that borderline patients experience chronic and significant emotional suffering and mental agony.

What triggers borderline personality?

Borderline Personality Disorder (BPD) triggers are often related to intense fear of abandonment, rejection, or invalidation, leading to extreme emotional reactions, unstable relationships, and impulsive behaviors, with common triggers including perceived neglect, sudden changes in routine, relationship conflict, and reminders of past trauma, all stemming from core difficulties with emotional regulation and self-image. 

What is the red flag of emotional manipulation?

The red flag of emotional manipulation employs a gradual approach to instill doubt and distance you from supportive relationships. They might make both subtle and overt requests for your time, effectively isolating you from other connections.

What phrases do manipulators use?

12 Phrases Skilled Manipulators Use in Everyday Conversation

  • “You're Overreacting.” “You're overreacting” works like a quick erase button. ...
  • “I Never Said That.” ...
  • “Everyone Thinks So.” ...
  • “If You Loved Me, You Would.” ...
  • “After All I've Done for You.” ...
  • “You Owe Me.” ...
  • “It's Just One Small Thing.” ...
  • “Keep This Between Us.”

What are the 10 signs of personality disorder?

Personality disorders involve pervasive patterns of distorted thinking, behavior, and emotional regulation, leading to significant distress and impairment, with common signs including unstable self-image, difficulty with relationships, extreme emotional swings, lack of empathy or excessive suspicion, impulsive behavior, poor stress management, and trouble with self-awareness, though symptoms vary widely across the 10 recognized types.
 

What counts as lying by omission?

Lying by omission is a type of deception that happens when you purposely omit information that's critical to something you're saying. As a result, it can influence someone else's understanding of the situation or cause them to believe things that are untrue.

What does God say about deceitful people?

Psalm 101:7 No one who practices deceit shall dwell in my house. Psalm 120:2 Deliver me, O Lord, from lying lips, from a deceitful tongue. Prov. 14:5 A faithful witness does not lie, but a false witness breathes out lies.

What does Proverbs 19:17 say?

Proverbs 19:17 means that showing kindness and generosity to the poor is like lending to God, and He promises to repay the giver for their good deed, not necessarily with money, but with blessings, favor, or spiritual rewards, because helping the needy reflects God's own compassion and character. It encourages active compassion, seeing acts of charity as investments in a divine economy where God honors those who care for the marginalized.