PRIMOGENITOR Synonyms: 37 Similar and Opposite Words

primogenitor

noun

ˌprī-mō-ˈje-nə-tər

Definition of primogenitor

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

Relevance

Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for primogenitor

Noun

Their ancestors had entered the United States through Southern ports, especially New Orleans and Galveston, which gave them a different political and cultural orientation from those who had entered through the East, and above all through New York.

— Literary Hub, Literary Hub, 22 Sep. 2026
While the complexities around working within a park that his ancestors had been removed from remain, Mgesi now supports much of his extended family with the steady wage.

— Juliet Kinsman, Condé Nast Traveler, 22 Sep. 2026

Definition of ancestor

Noun

Nearly a century after his great-grandfathers played college football, USC freshman defensive lineman Luke Wafle is emerging as a generational talent.

— Los Angeles Times, Los Angeles Times, 17 Sep. 2026
To Diana, who has taken over First Desk at the Park after last season’s events, River’s refusal to take bereavement leave gives her license to speak about his grandfather’s funeral arrangements with her usual cool formality.

— Scott Tobias, Vulture, 16 Sep. 2026

Definition of grandfather

Noun

Following his opera career, Schachtel’s father became a cantor and married a granddaughter of Yitzchak Elchanan Spektor, a rabbi of Grodno, after whom the seminary of Yeshiva University is named.

— Literary Hub, Literary Hub, 22 Sep. 2026
Wickersham said last year that the silver Pontiac G5 car that the suspect used to ram the police SUV belonged to the man's father.

— Christina Hall, Freep.com, 22 Sep. 2026

Definition of father

Noun

One of those daughters was the magical Maria, progenitor of Sally, Gillian, Kylie, and Antonia’s bloodline.

— Ryan Coleman, Entertainment Weekly, 11 Sep. 2026
Somewhat surprisingly, the AI progenitor networks, tensor clouds, and evolutionary random forests mostly agreed that WHEEP-3’s advice was helpful, though their explanations for why could not be understood by most humans.

— Literary Hub, Literary Hub, 9 Sep. 2026

Definition of progenitor

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

primo

primogenitor

primogenitors

See all Nearby Words

Cite this Entry

Style

“Primogenitor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/primogenitor. Accessed 25 Sep. 2026.

Copy Citation

Synonyms of primogenitor

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster

Word of the Day

tactile

Popular in Grammar & Usage

Do You Need a New Language Peeve?

More Commonly Mispronounced Words

Why do we use apostrophes to show possession?

Merriam-Webster’s Great Big List of Words You Love to Hate

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Popular in Wordplay

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 25

Popular

Do You Need a New Language Peeve?

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Games & Quizzes