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Definition of proportional

proportional

/prəˈpɔːr.ʃən.əl/
pro · por · tion · al

Adverb:proportionally
•
Plural:proportionals
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proportional Lexical Profile

proportional Game Scores & Validity

• adjective

1

Corresponding in size, degree, or intensity to something else; having a due or balanced relative scale.

Example

"The company implemented a bonus structure that is directly proportional to each employee's annual sales performance."


2

In mathematics, having a constant ratio to another variable quantity.

Example

"At a constant temperature, the pressure of an ideal gas is inversely proportional to its volume."

Synonyms
View all synonyms for proportional
Antonyms
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• noun

1

In mathematics, any of the quantities or terms forming a geometric or arithmetic proportion.

Example

"The students learned how to calculate the mean proportional between two positive integers."

Word Nuance & Usage

While "proportional" and "proportionate" overlap heavily in general use, "proportional" is strictly required in mathematical, scientific, and political contexts (such as "inversely proportional" or "proportional representation"), whereas "proportionate" is often preferred when emphasizing fairness or appropriateness in scale.

• Rhymes for proportional

Word Origin & Etymology

Borrowed in the late 14th century from Late Latin proportionalis, derived from Latin proportio ("comparative relation, analogy"), from the phrase pro portione meaning "according to each part's share."

Cite this Entry


Wordmom. (2026). Definition of Proportional. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/proportional
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