Dictionary.com
Thesaurus.com
Synonyms

evolutionary

American  
[ev-uh-loo-shuh-ner-ee, ee-vuh-] / ˌɛv əˈlu ʃəˌnɛr i, ˌi və- /

adjective

  1. pertaining to evolution or development; developmental.

    the evolutionary origin of species.

  2. of, relating to, or in accordance with a theory of evolution, especially in biology.

  3. pertaining to or performing evolutions.


Other Word Forms

Derived Forms

Etymology

Origin of evolutionary

First recorded in 1840–50; evolution + -ary

Explanation

Evolutionary things have to do with how animals (or other things) change over time — this process of change is called evolution. Scientists that study living things are interested in evolutionary changes in form or behavior. It's not always easy to put the evolutionary pieces together, and scientists often have to rely on fossils to tell the whole story of evolution. Usually, evolutionary changes happen because they help the organism survive and reproduce. Many evolutionary questions are non-physical: How did the domestication of dogs change the behavior of canines from an evolutionary standpoint? When you see the word evolutionary, think "change."

Keep Reading on Vocabulary.com

Vocabulary lists containing evolutionary

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.

Somewhere along the way, for evolutionary reasons, aging has become baked into the process.

From The Wall Street Journal • Jun. 5, 2026

Because little was known about mating patterns in wild belugas, the team developed predictions based on evolutionary theory and what scientists already knew about the species.

From Science Daily • Jun. 4, 2026

As the researchers note, the Triassic was an era full of evolutionary surprises.

From Science Daily • May 29, 2026

What makes this especially surprising is its place on the evolutionary tree.

From Science Daily • May 29, 2026

You have a natural evolutionary gift, designed to protect you.

From "Boy 2.0" by Tracey Baptiste

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "evolutionary" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com