Antipetalous – Definition & Meaning

Antipetalous is a term that is not commonly used in everyday language, but it is still important to understand its meaning and origin. In this article, we will explore the definition and significance of antipetalous, as well as its associations, synonyms, and antonyms.


Antipetalous refers to a flower or plant that lacks petals. It can also describe the arrangement of the stamens and pistils in a flower, where they are positioned opposite the petals. This is in contrast to a flower that has petals, which would be described as being “petalous.”


The word antipetalous is derived from the Greek words “anti,” meaning “opposite,” and “petalon,” meaning “petal.” The term was first used in the mid-19th century to describe the structure of certain flowers.

Meaning in different dictionaries

In the Merriam-Webster dictionary, antipetalous is defined as “having the stamens and pistils opposite the petals.” The Oxford English Dictionary defines it as “lacking petals.”


Antipetalous plants and flowers are not as common as those with petals. They are often found in tropical regions and are typically small and inconspicuous. Some examples of antipetalous plants include the duckweed family and the watermeal family.


Synonyms for antipetalous include “apetalous,” “non-petalous,” and “petaloid.”


The antonyms of antipetalous are “petalous” and “petaliferous.”

The same root words

The root word “petal” is also found in other botanical terms, such as “petaloid,” which describes a structure that resembles a petal, and “petaline,” which refers to something that is related to or resembling a petal.

Example Sentences

  1. The antipetalous flowers of the duckweed family are often overlooked due to their small size.
  2. The stamens and pistils of the antipetalous flower were positioned opposite the sepals.
  3. The plant had no petals, making it an antipetalous species.
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