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Definition of theoretical

theoretical

/ˌθiː.əˈɹɛt.ɪ.kəl/
the · o · ret · i · cal
Adverb:theoretically
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theoretical Lexical Profile

theoretical Game Scores & Validity

• adjective

1

Concerned with or involving the theory of a subject or area of study rather than its practical application.

Example

"She decided to specialize in theoretical physics rather than experimental research."

2

Based on or calculated through theory rather than experience or practice; hypothetical or assumed to exist.

Example

"The engineers discussed the theoretical maximum speed of the new train under ideal conditions."

Synonyms
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Antonyms
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Word Nuance & Usage

'Theoretical' is the standard adjective used to describe something based on theory rather than practical application, whereas 'theoretic' is a much rarer variant mostly restricted to older philosophical texts.

• Rhymes for theoretical

• Nearby Words

theology
theorem
theoretic
theoretical
theoretically
theoretician
theorist

Word Origin & Etymology

Derived from Late Latin 'theoreticus', from Ancient Greek 'theōrētikos' ('contemplative, speculative'), which comes from 'theōrein' ('to look at, view, or contemplate').

Cite this Entry

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