disown
[verb]
Synonyms: deny, cast off, disavow, disclaim, reject, renounce, repudiate

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Antonyms: own

[TahlilGaran] English Synonym Dictionary ▲

dis‧own /dɪsˈəʊn $ -ˈoʊn/ verb [transitive not in progressive]
[Word Family: verb: own, disown; noun: owner, ownership]
to say that you no longer want to be connected with someone or something, especially a member of your family or something that you are responsible for:
Frankly, I’m not surprised her family disowned her.
Since 1960, Kubrick has virtually disowned the film.

[TahlilGaran] Dictionary of Contemporary English ▲