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Synonyms

embryonic

American  
[em-bree-on-ik] / ˌɛm briˈɒn ɪk /
Also embryonal

adjective

  1. pertaining to or in the state of an embryo.

  2. rudimentary; undeveloped.

    Synonyms:
    unfinished, immature, underdeveloped

embryonic British  
/ ˌɛmbrɪˈɒnɪk, ˈɛmbrɪənəl /

adjective

  1. of or relating to an embryo

  2. in an early stage; rudimentary; undeveloped

"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

Derived Forms

Etymology

Origin of embryonic

1840–50; embryon- ( see embryo) + -ic

Explanation

If something is described as embryonic, it's just starting to develop or come together. An "embryo" is a person or animal that is still growing in the womb or egg, and embryonic means "like an embryo." The idea for Facebook was still embryonic when its creators agreed to be partners. At that early stage, none of them could have imagined what an enormous company it would become. Scientists working on embryonic stem-cell research are working on stem cells from embryos, which have special properties not found in any other cells. Our relationship was still embryonic when you suggested we move in together, but for me, the first date is way too early to think about such things.

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Vocabulary lists containing embryonic

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.

It was an embryonic version of reality TV.

From Los Angeles Times • Jun. 8, 2026

Paterson and Gower used visual references from porcupines to animal embryonic sacks.

From Los Angeles Times • Jun. 1, 2026

The Serb's embryonic body of work came in one of the strongest eras of the ATP Tour, however.

From BBC • May 17, 2026

Europe must work a lot harder to give them protection while they are in a very embryonic state, he adds.

From The Wall Street Journal • Jan. 22, 2026

Each of these embryonic segments, Lewis knew, gives rise to a congruent segment found in the adult fly.

From "The Gene" by Siddhartha Mukherjee

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