Dictionary.com
Thesaurus.com
Synonyms

seminal

American  
[sem-uh-nl] / ˈsɛm ə nl /

adjective

  1. pertaining to, containing, or consisting of semen.

  2. Botany. of or relating to seed.

  3. having possibilities of future development.

  4. highly original and influencing the development of future events.

    a seminal artist; seminal ideas.

    Synonyms:
    innovative, formative, primary, germinal

seminal British  
/ ˈsɛmɪnəl /

adjective

  1. potentially capable of development

  2. highly original, influential, and important

  3. rudimentary or unformed

  4. of or relating to semen

    seminal fluid

  5. biology of or relating to seed

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • interseminal adjective
  • preseminal adjective
  • seminality noun
  • seminally adverb

Etymology

Origin of seminal

1350–1400; Middle English < Latin sēminālis, equivalent to sēmin- (stem of sēmen ) seed, semen + -ālis -al 1

Explanation

Call something seminal when it's so original, so groundbreaking and awesome that it will influence everything that comes after it. Picasso produced more than a few seminal works of art, for example. Technically, seminal means something related to semen or seeds. But these days people more often use the word to describe something that plants the seed for creative growth. An innovative piece of music or literature, a fresh new idea, or an invention that changes everything could each be called seminal. Synonyms include critical, fundamental, original, and primary.

Keep Reading on Vocabulary.com

Vocabulary lists containing seminal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The city was the one-time home of Augustine, whose autobiographical "Confessions" is a seminal work within the Christian tradition.

From Barron's • Apr. 14, 2026

There were storyboards of the classic “1984” ad, color studies for Apple’s rainbow logo and drafts of the seminal memo laying out the company’s guiding principles.

From The Wall Street Journal • Apr. 3, 2026

In his seminal work External link on the impact of automation on jobs, MIT economist David Autor noted the tendency of headlines to overstate the extent of job losses from new technology.

From Barron's • Mar. 27, 2026

The seminal work by Glass lands at L.A.

From Los Angeles Times • Feb. 27, 2026

And of course, music, the liberation of which is considered a seminal geek accomplishment.

From "Geeks: How Two Lost Boys Rode the Internet Out of Idaho" by Jon Katz