theoreticalприлагательное Concerned with or involving the theory of a subject or area of study rather than its practical application. The course was highly theoretical, focusing on the principles of quantum mechanics rather than experiments.
Based on or calculated through theory rather than experience or practice. The theoretical model predicted a different outcome than what was observed in the experiment.
Existing only in theory; hypothetical. The idea of time travel remains a theoretical concept, as it has not been proven possible.