as in ancestor
a person who is several generations earlier in an individual's line of descent
the family held a huge reunion to mark the 200th anniversary of their primogenitors' arrival in America
Synonyms & Similar Words
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Antonyms & Near Antonyms
Example Sentences
Recent Examples of Synonyms for primogenitor
Noun
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Kean comes from a long line of public servants, stretching 250 years to the country’s founding when one of his ancestors became New Jersey’s first leader since independence.
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One of these is likely the evolutionary ancestor of all that is to come.
Noun
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In 1926, Brian's great-grandfather, Henry Knoebel, opened a pool that would mark the official start of the family’s park.
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The supplies will be taken to Miami and then Venezuela by Olarte Transport, said volunteer Andrea Casanova, 28, whose grandfather was in Venezuela when the earthquakes struck.
Noun
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The news of the arrest caught the attention of the family of Amy McHale, a woman who was once married to Horsch’s father and disappeared nearly 10 years ago.
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Her oldest sister, Sonia Gonzalez, said Gonzalez reminds her a lot of their father, who reinvented himself many times over the years.
Noun
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Yet that same year, Brynjolfsson got access to GPT-3, a progenitor of ChatGPT.
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But this follow-up earned less than one third of its progenitor's domestic opening take of $125 million.
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Cite this Entry
“Primogenitor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/primogenitor. Accessed 5 Jul. 2026.
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