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theoretical
/ˌθiːjəˈrɛtɪkəl/
adjective
also
theoretic
/ˌθiːjəˈrɛtɪk/
/ˌθiːjəˈrɛtɪkəl/
adjective
also
theoretic
/ˌθiːjəˈrɛtɪk/
Learner's definition of THEORETICAL
1
:
relating to what is possible or imagined rather than to what is known to be true or real

On a theoretical level, hiring more people seems logical.

The idea is purely theoretical at this point.

a theoretical argument

The teacher gave us a theoretical [=hypothetical] situation as an example.

The danger is more than just a theoretical possibility.

I was speaking in theoretical terms. [=theoretically]
2
:
relating to the general principles or ideas of a subject rather than the practical uses of those ideas
— theoretically
/ˌθiːjəˈrɛtɪkli/
adverb

Theoretically, the value of the funds could triple in the next few months.

It is theoretically possible but unlikely to happen.

He argued theoretically.