BIOLOGICAL Synonyms: 8 Similar and Opposite Words

biological

adjective

ˌbī-ə-ˈlä-ji-kəl

variants also biologic

Definition of biological

as in birth

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

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Example Sentences

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.

Recent Examples of biological For executives, that fortress includes the systems surrounding their decisions and the biological capacity supporting them. — Julian Hayes Ii, Forbes.com, 23 Aug. 2026 Cox, a biological male who identifies as a woman, is facing a slew of charges in Arlington County for entering female locker rooms at local schools and recreation centers. — Amy Delaura, The Washington Examiner, 22 Aug. 2026 Another explanation is that there could be changes over time in diagnosis and reporting, or there could be other biological factors underlying why this condition appears to be increasing. — Faye Chiu, CNN Money, 21 Aug. 2026 But in the view of Martin and his colleagues, LUCA was not exactly biological but rather a chemical system formed in the unique environment created by hydrothermal vents. — Philip Ball, Scientific American, 20 Aug. 2026 See All Example Sentences for biological

Recent Examples of Synonyms for biological

Adjective

When the latter has a post-birth panic about surrendering her child, Irina simply absconds with it from the private hospital facility in the middle of the night, knowing the destitute young woman is unlikely to pursue any legal or other options.

— Dennis Harvey, Variety, 30 July 2026
The infant and his mother were then transported to a hospital for post-birth medical care, with both expected to make a full recovery.

— Latoya Gayle, PEOPLE, 3 July 2026

Definition of birth

Adjective

Kassebaum Baker died Friday of natural causes, according to her son, Bill Kassebaum.

— John Hanna, Fortune, 23 Aug. 2026
The guidance comes after residents cited noise, effects on wildlife and a desire to preserve natural areas used for recreation, hunting and fishing, according to a press release from the government of Greenland, Naalakkersuisut.

— Kelly McGreal, FOXNews.com, 23 Aug. 2026

Definition of natural

Adjective

The result has turned a team with a 10-22 record in the second half of the season into a legitimate contender to steal the second-half crown in the Eastern League.

— Tim Britton, New York Times, 22 Aug. 2026
Wrestlers having legitimate issues backstage has led to multiple feuds that people-pleasing AEW President Tony Khan could not control.

— Alfred Konuwa, Forbes.com, 21 Aug. 2026

Definition of legitimate

Browse Nearby Words

biography

biological

biopesticide

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“Biological.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/biological. Accessed 27 Aug. 2026.

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Synonyms of biological

adjective

Example Sentences

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