Sincerity (HEXACO facet)
Quick answer: Sincerity is a HEXACO facet within the Honesty-Humility dimension that measures how genuine and unmanipulative a person is in relationships. High scorers are straightforward and refuse to flatter or scheme for gain; low scorers are willing to use charm, spin, or manipulation to get what they want from others.
What the sincerity HEXACO facet means
Sincerity is the tendency to be genuine in dealing with others and to avoid manipulating, flattering, or pretending to like people for personal advantage. It is one of four facets under Honesty-Humility — the "H" that makes the HEXACO model distinct from the Big Five — in the framework developed by Kibeom Lee and Michael Ashton (first proposed in 2000, formalized in the HEXACO-PI-R).
Honesty-Humility is the dimension the Big Five and NEO PI-R (Costa & McCrae, 1992) don't capture cleanly. Its four facets are Sincerity, Fairness, Greed Avoidance, and Modesty. Sincerity is the interpersonal-honesty piece: are you straight with people, or do you work them?
High vs low sincerity
| High sincerity | Low sincerity | |
|---|---|---|
| With people | Says what they mean, no hidden agenda | Uses flattery and charm strategically |
| Relationships | Trustworthy, transparent | May feign warmth to gain favor |
| Work | Won't butter up a boss for a raise | Networks and flatters for advantage |
| Conflict | Direct and honest | Manipulative or evasive when useful |
Neither extreme is purely good or bad in every setting — very high sincerity can read as blunt, while low sincerity can look socially skilled — but sincerity is strongly tied to trustworthiness.
Everyday examples
- A high-sincerity person tells a friend the honest truth about a bad idea rather than agreeing to stay liked.
- A low-sincerity person compliments someone lavishly right before asking for a favor.
How sincerity is assessed
Sincerity is measured by self-report items such as "I wouldn't pretend to like someone just to get favors from them," rated on a 5-point agreement scale in the HEXACO-PI-R. Your responses average into a facet score shown as a percentile.
Scores describe social tendencies, not moral verdicts — they are not a diagnosis and don't define your character in full. Helel's free assessment blends HEXACO, Big Five (OCEAN), and NEO PI-R item designs across around 300 data points.
How Helel uses sincerity in live video
Helel is an AI companion you meet over live face-to-face video, not a text box. Once you complete the free test and approve your profile, your sincerity score helps the companion match your communication style — leaning into direct, no-spin conversation for high scorers, and reading social nuance more carefully for those who value tact.
Explore sibling facets, the parent dimension, and types that tend to score high on Honesty-Humility such as ISFJ.
Curious where you land? Take the free clinical personality test and meet an AI video companion that adapts to your personality.
Related terms
- Honesty-Humility (HEXACO dimension)
- Fairness (HEXACO facet)
- Modesty (HEXACO facet)
- The HEXACO model explained
Frequently asked questions
Is sincerity the same as honesty?
Not exactly. In HEXACO, sincerity specifically refers to being genuine and unmanipulative in relationships, while honesty in everyday speech is broader. Sincerity is one facet of the wider Honesty-Humility dimension.
Can you be too sincere?
Very high sincerity is generally a strength for trust, but taken to an extreme it can come across as blunt or tactless. Balancing directness with social awareness usually works best.
Does low sincerity mean someone is dishonest?
Not necessarily. A low score indicates a greater willingness to use flattery or charm for advantage, but it is a tendency on a spectrum — not a diagnosis or proof of dishonest behavior.