Thesaurus

biological

adjective
variants: also biologic

Synonyms & Antonyms of biological

being such by blood and not by adoption or marriage
  • the rights of the biological father in this case

Synonyms for biological

Words Related to biological

Near Antonyms for biological

Antonyms for biological

See the Dictionary Definition 

Learn More About biological

Time Traveler for biological

Time Traveler

The first known use of biological was in 1818

See more words from the same year

Thesaurus Entries Near biological

biography

biological

biopesticide

See More Nearby Entries 

Cite this Entry

“Biological.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/biological. Accessed 18 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on biological

Nglish: Translation of biological for Spanish Speakers

Britannica English: Translation of biological for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!