English Reference
adjective · noun

hereditary

adj. · n.
US /hɝˈɛdəˌtɛɹi/ UK /hɪɹˈɛdɪtəɹi/ hered·i·tary

  1. 01 B2 Upper Intermediate Science

    adj.passed from a parent to a child through their genes.

    adj.relating to the genetic transmission of physical or mental characteristics from parents to offspring.

    Simple

    The doctor asked if there was a hereditary history of heart disease in his family.

    In context

    Researchers are investigating whether certain behavioral patterns are truly hereditary or simply the result of a shared domestic environment.

  2. 02 B2 Upper Intermediate Formal Law

    adj.passed to a child or relative after a person dies, usually referring to a title like 'King' or 'Lord'.

    adj.descending by inheritance; describing a title, office, or right legally granted to a descendant upon the death of the holder.

    Simple

    In some countries, the position of head of state is a hereditary role.

    In context

    The reform act significantly reduced the number of hereditary peers permitted to sit and vote in the upper house of parliament.

  3. 03 C2 Proficiency Technical Math

    adj.a special property in math where if a large group has a rule, all smaller parts inside it must also have that rule.

    adj.describing a property of a structure such that every substructure of a given type also possesses that property.

    Simple

    The professor explained that being a planar graph is a hereditary property.

    In context

    In graph theory, a class of graphs is hereditary if it is closed under taking induced subgraphs.

  4. 04 C1 Advanced British EnglishFormal Law

    n.a person who holds a high rank or position because their parents held it before them.

    n.an individual who holds a title, rank, or seat in a legislative body by right of inheritance rather than election.

    Simple

    The new law changed how many hereditaries could stay in the government.

    In context

    The debate centered on whether the hereditaries should retain their historical right to influence modern legislation.

The rule change will not affect his heir, Hereditary Prince Alois, who was his first-born.

BBC News· 15 Aug 2026

Inherited from Middle English hereditarie, from Latin hērēditārius, from hērēditās (“inheritance”), from hērēs (“heir”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin hērēditārius
Level B2 · Upper Intermediate
Frequency Frequent
Updated