The meaning of THEORETICAL is existing only in theory : hypothetical. How to use theoretical in a sentence.

THEORETICAL definition: 1. based on the ideas that relate to a subject, not the practical uses of that subject: 2. related…. Learn more.

Definition of theoretical adjective from the Oxford Advanced Learner's Dictionary. connected with the ideas and principles on which a particular subject is based, rather than with practice and …

THEORETICAL meaning: 1 : relating to what is possible or imagined rather than to what is known to be true or real; 2 : relating to the general principles or ideas of a subject rather than the …

1. Of, relating to, or based on theory. 2. Restricted to theory; not practical or applied: theoretical physics. 3. Studying or working to develop theory.

Factsheet What does the word theoretical mean? There are eight meanings listed in OED's entry for the word theoretical. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Something theoretical is concerned with theories and hypotheses — it's not necessarily based on real life or meant to be applied to real life. Theoretical things are based on theory and ideas, …

Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict natural phenomena. This is in …

Aug 20, 2025 · theoretical (comparative more theoretical, superlative most theoretical) Of or relating to theory; abstract; not empirical. antonym quotations Antonym: practical

A theoretical study or explanation is based on or uses the ideas and abstract principles that relate to a particular subject, rather than the practical aspects or uses of it.