theoretical Definition

  • 1relating to or based on a theory, hypothesis, or abstract reasoning
  • 2not practical or applied; hypothetical

Using theoretical: Examples

Take a moment to familiarize yourself with how "theoretical" can be used in various situations through the following examples!

  • Example

    The theoretical basis for the research was sound.

  • Example

    The experiment was purely theoretical and had no practical application.

  • Example

    The theoretical physicist proposed a new model of the universe.

  • Example

    The course covered both theoretical and practical aspects of computer programming.

theoretical Synonyms and Antonyms

Phrases with theoretical

  • a set of concepts, assumptions, and expectations that form a way of understanding and interpreting phenomena in a particular field of study


    The theoretical framework of the research was based on the principles of cognitive psychology.

  • the branch of physics that deals with the development of theories to explain the behavior of matter and energy in the universe


    Theoretical physics has led to many groundbreaking discoveries in the field of science.

  • theoretical knowledge

    knowledge that is based on theory rather than practical experience


    Theoretical knowledge is important, but it must be supplemented with practical skills to be useful in the real world.

Origins of theoretical

from Late Latin 'theoreticus', from Greek 'theōrētikos', from 'theōrein', meaning 'to look at'


Summary: theoretical in Brief

The term 'theoretical' [ˌθiːəˈretɪkl] refers to concepts, ideas, or hypotheses that are not yet proven or applied in practice. It is often used in academic or scientific contexts, such as 'theoretical physics' or 'theoretical framework.' 'Theoretical' is the opposite of 'practical' or 'applied,' and is sometimes shortened to 'theo' in informal settings.

How do native speakers use this expression?